Respirators for working with chemicals. Personal protective equipment against dust and their selection

Respirators

RESPIRATOR- a device for respiratory protection (RPE) from inhalation exposure to harmful and dangerous chemicals present in the air in the form aerosols, vapors or gases, with sufficient oxygen content in the air (at least 17% by volume).

Human technical power is inevitably associated with environmental pollution. At the same time, in some industries, construction and production, the concentration of pollutants in the air reaches critical values ​​that are incompatible with normal breathing.

If, in this case, only the spraying of the smallest particles is observed, without the admixture of harmful or poisonous gases and fumes, then the most optimal way to protect the human respiratory system is respirators.

Unlike gas masks, respirators are more compact and consist of a simple half mask with protective filters.

These personal protective equipment may differ in service life, frequency of use, and cleaning method.

The general purpose of all devices of this class is to purify the air in production and civil use from the smallest particles, dust, and some types of special respirators also support more complex substances.

Purpose of respirators

Not only in production, but also in the army, along with weapons, tools, personal protective equipment is included in the equipment of personnel.

In healthcare, the presence of protective respiratory equipment is a necessary condition for the successful work of personnel in the autumn-winter period; medical personnel use the simplest type of respirator - a cotton-gauze bandage, however, when used correctly, the effectiveness of use is quite high.

The disadvantage is that it does not protect against penetrating dust, including radioactive dust.

A respirator, which is not equipped with replaceable valves, is designed to withstand a certain degree of contamination, and a protective device with filters provides four times more protection for a person from the finest dust and aerosol spray.

Respirators are distinguished by their function of cleaning the inhaled air. When protecting against harmful vapors and gases, protection is used based on chemical processes such as catalysis and adsorption; when protecting against aerosol substances, multilayer fibrous materials are used for protection.

The main advantage of the protective equipment is its low resistance to human breathing, as well as its light weight.

Wearing a respirator does not interfere with the performance of the necessary work, does not interfere with the view of the area, the time spent in the respirator mask is quite long and the pressure on the front part is not burdensome.

It is not allowed to use a respirator when the air is contaminated with potent toxic substances, such as hydrocyanic acid, or substances that can penetrate the human body through the skin. In this case, it is necessary to use a gas mask or chemical protection suit.

The most common model of respirator is a device with protection against aerosol spray; polymer filter materials with high mechanical strength, high dust holding capacity, and good filtering properties are used as a filter. There is also a gas protection model and a generalized dust and gas respiratory system.

Each of these products is intended for use under conditions corresponding to those specified in the instructions for the respirator. This applies to both the concentration and type of substances in the air, as well as the time of use.

Classification of respirators

Like any means of protection and rescue, respirators are subject to mandatory classification. The classification first of all helps to find the required type of respirators for use in given conditions. In addition, according to the class of the device, special markings are made on the filters and some parts of the half mask.

Respirators are classified according to several main characteristics:

• According to its purpose
• By time of use
• By design
• By air injection device

The purpose of respirators, in turn, is determined by other constituent factors.

There are three types of assignment:

• For dust protection
• For protection against gaseous substances
• And also for joint protection from both sprayed and gaseous substances.

Based on the time of use, two main types of respirators can be distinguished:

• Single use
• And reusable

Based on their design, they can also be divided into two types. Moreover, this classification is closely related to the classification by time of use:

• Just a half mask. This type of respirator is naturally limited, one might say single use
• Half mask with special replaceable filter elements. When using some elements and reducing their protective qualities to minimum limits, you can quickly replace these respirator elements with appropriate ones.

And the last division according to the type of supply of purified air and removal of used air is also divided into two types:

• Simple filter half masks
• Isolating respirators, in which air is supplied under certain human efforts or is forced.

The main types that classify these means of protection, of course, are the parameters that determine the maintained pollution environment. The remaining parameters depend on what type of spraying and what specific substances this respirator will support.

Respirators that allow you to protect the respiratory system from the smallest particles in the form of dust and also a certain type of aerosols or diseases transmitted by airborne droplets are called anti-dust and are a regular half mask or even a respiratory bandage made of a special filter fiber, usually now a polymer fabric is used under the abbreviation FP.

Respirators used against vapors and gases of various substances, including sulfur, phosphorus and volatile compounds, have a more complex design. They are equipped with special cartridges that have their own letter markings:

• A - chlorine, phosphorus, volatile ethers and gasolines, and so on.
• B - acid gases
• G - mercury
• KD - hydrogen compounds and ammonia

Protective products that combine universal protection from both dust and gases are distinguished by the best performance indicators, thanks to polymer filters, which, in addition to directly capturing the smallest particles, create a thin electric field that magnetizes inhaled particles.

The masks themselves are made in several versions. There are so-called converter respirators that drive air through pressed filter fabric. They are also divided into their own protection classes:

• First class - (FFP 1) up to 4 PKD,
• Second class - (FFP 2) up to 12 PKD
• Third class - (FFP 3) up to 50 PKD.

When using half masks connected to filter cartridges, you must pay attention to the special markings located in the center of the filter element.

Important factors when working with respirators

The scope of application of filtering means of protection of the human respiratory apparatus finds its direct application in many branches of human activity.

The respirator is designed to carry out its main purpose, i.e., to protect a person from the harmful effects of toxic substances during emergency situations, but in ordinary life there are domestic and industrial needs associated with the need to use personal protective equipment in an aggressive external environment, so people On duty, those employed in areas with hazardous working conditions should know the rules for the selection and use of personal protective equipment.

To choose the right respirator, you need to know the exact size, i.e. the distance between the highest point of the bridge of the nose and the lowest point of the chin. The rules for trying on a respirator are to remove the protective equipment from the package and carefully inspect it visually.

It is also necessary to adjust the headband fixing bands using the clamps. Apply the ends of the nose clips to your nose without making much force. Checking the tight fit of the respirator mask to the face consists of tightly closing the exhalation hole with your palm and exhaling, if at the same time, along the outline of the mask border on the face, no air comes out from under it, and the mask only slightly inflates, then the mask precisely selected and therefore safe in terms of tightness.

If there is air leakage in the nose area, the nose clips should be pressed a little tighter. If the respirator mask does not fit tightly, you should check the size or replace it with a serviceable one. The respirator is stored in a gas mask bag, in a bag, under the front part of the gas mask or in your own bag for wearing these protective devices.

Service life and scheduled replacement of respirator parts

The use of respirators is inextricably linked with safety requirements, service life and preventive and scheduled repairs.

Different types of devices protect against types of harmful substances sprayed into the air in one form or another, different in structure and other parameters.

Knowing the properties of contaminants, you can roughly calculate the operating time of a particular respirator.

Main types of pollution:

• Dust. The source can be a variety of processes - wood, coal, various oxides, industrial dust and those associated with agricultural work.
• Smoke. Sources may include smoke, smog, manufacturing processes such as welding
• Aerosol sprays. The source can be spraying of dyes through a spray gun, various machining processes
• Fibers. For example, asbestos or glass wool used as fireproofing or insulation materials
• Gases. As an example, we can bring the development of internal combustion engines and so on, various processes associated with chemical treatment
• Couples. In production conditions, this is the evaporation of volatile substances

Knowing the main sources of pollution allows you to choose the right means of protection.

A simple respirator serves in average conditions, approximately 3 work shifts.

Therefore, when starting work, you should check the air permeability, the elasticity of certain parts of the fastener, and the functionality of the nose clip.

In the case of using respirators with replaceable filter elements, scheduled repairs should be carried out in-house or at the manufacturer’s factory. In this case, special attention is paid to the fastening elements of the breathing unit.

Respirators are divided into two types.
First- respirators in which the half mask or filter element also serves as the front part.
Second- These are respirators that purify the air in filter cartridges attached to a half mask.
By purpose are divided into anti-dust, anti-gas and gas-dust protective.
Depending on the service life, there may be one-time use (ShB-1, “Lepestok”, “Kama”), which after working out are unsuitable for further use. Reusable respirators have filter replacement options.
The inhaled air is cleaned of aerosols of harmful substances by filtration through fine-fiber materials KPP-15, KPP-70 and rolled RCM with perchlorovinyl fibers. They are hydrophobic, stable at temperatures up to 60 C, resistant to alkalis and acids. They have a high filtering ability against all aerosols. This is ensured by the uniformity of the filter layer and the presence of electrostatic charges, which dramatically increase the effect of aerosol capture.
RPG-67, gas respirator
Purpose: The RPG-67 gas respirator is designed to protect the human respiratory system from harmful substances present in the workplace atmosphere in the form of vapors and gases. Provides protection for the human respiratory system in various industries, in agriculture when working with pesticides and fertilizers, as well as in domestic conditions.
Compound
RPG-67 is a rubber half mask with a headband, an exhalation valve, two plastic cuffs with inhalation valves, two replaceable absorbent cartridges and a knitted seal.
Characteristics
It is equipped with 4 brands of cartridges. They are specialized depending on the physicochemical and toxic properties of harmful substances. The cartridges differ from each other in the composition of the absorbers, and in appearance - by the markings applied in the center of the perforated mesh of the cartridge.
Ammo brands:
"A" - vapors of organic substances (gasoline, kerosene, carbon disulfide, alcohols, ethers, benzene (nitro compounds of benzene) and their homologues, xylene, toluene), chlorine- and phosphorus-containing pesticides. Protective action time 60 min.
"B" - acid gases (sulfur dioxide, hydrogen sulfide, hydrogen chloride), chlorine- and phosphorus-containing pesticides. Protective action time 50 min.

"G" - mercury vapor and organomercury compounds. Protective action time 20 min.
When using a respirator, at the first appearance of a foreign odor under the mask, you should quickly leave the gas-contaminated area and change the respirator cartridges. Breathing resistance during inhalation is 58.8 Pa (6 mm water column). The guaranteed shelf life of respirators and cartridges of brands A, B and KD is 3 years, D - 1 year from the date of manufacture.
The weight of the RPG-67 is no more than 300 g.
Main characteristics:
Breathing resistance at volume flow 30 l/min, Pa, no more
- on inspiration - 88.2
- on exhalation - 58.8
Operating temperature range, °C - -40 ... +50
Weight, g, no more than - 300
F-62Sh, dust respirator
Designed to protect the human respiratory system from silicate, metallurgical, mining, coal, tobacco and other dust, as well as powdered fertilizers and pesticides that do not emit toxic gases and vapors.
Technical features: The respirator can be used at high dust concentrations (more than 200 mg/m3) and physical activity.
Compound
The respirator consists of a rubber half-mask with a headband, an exhalation valve and one plastic cartridge equipped with a replaceable anti-aerosol filter made of polymer material in the form of concentric folds. The cartridge is connected to the half mask using the flanges of the pipe. An inhalation valve is located inside the pipe on the saddle. There are louvres on the cartridge cover that act as a barrier for coarse dust particles. The cover serves to fasten and seal the replaceable filter and is fixed in the cartridge body with a clamping ring.
Specifications
Initial resistance to air flow during inhalation, Pa (mm water column) - no more than 35 (3.5).
Weight - no more than 250 g.
Guaranteed shelf life of at least 3 years.
It is prohibited to use the F-62sh respirator for protection against harmful gases and vapors.
The design of the respirator allows for goggles to be placed on the face if eye protection is necessary.
There is a possibility of reusable use, because the respirator is equipped with a filter that can be easily cleaned from settled dust and, if necessary, replaced with a new one. The respirator is manufactured in three sizes (1st, 2nd, 3rd). The size of the respirator is indicated on the outer surface of the half mask. A replaceable filter element is supplied with the respirator.

RPA-TD", anti-aerosol respirator
Designed to protect human respiratory organs from silicate, metallurgical, mining, cement, coal, textile, tobacco dust.
Purpose:
The RPA-TD respirator is designed to protect the human respiratory system from silicate, metallurgical, mining, cement, coal, textile, tobacco dust, various dusts, powdered fertilizers and other types of industrial dust.
Peculiarities
The RPA-TD respirator is operational in the temperature range from -40 to +40 °C and can be used in all climatic zones. The RPA-TD respirator is available in three lengths: first, second, third; two modifications: RPA-TD-1 - with one filter and RPA-TD-2 - with two filters.
РХ-90Т, respirator
Purpose
The RX-90T respirator is designed to protect the human respiratory system and vision during underground accidents with a gaseous environment unsuitable for life and is a reusable means of protection.
Peculiarities
The respirator uses regenerative cartridges of mine self-rescuers with expired service life after their refurbishment, which significantly reduces operating costs.
The RX-90T respirator has a closed body, which provides reliable protection of functional components from mechanical impact, and the modern soft suspension system dramatically reduces the influence of the respirator’s mass factor on human performance. In the basic version of the respirator, a mouthpiece, a nose clip and safety glasses are used as the front part. However, at the customer’s request, the PX-90T respirator can be equipped with a modern panoramic mask. In addition, the respirator can be equipped with an exhaust sensor, which allows you to accurately control the degree of exhaustion of regenerative cartridges.
Increased breathing comfort due to the use of cartridges with chemically bound oxygen, low temperature of the inhaled gas mixture, low weight and dimensions allow the use of the PX-90T respirator not only to equip auxiliary mine rescue services of coal enterprises, but also as a special respirator for professional rescue services to perform especially difficult types of work in various industries, such as mining, gas production, gas processing, metallurgy, nuclear and thermal power plants, fire services, Ministry of Emergency Situations, all types of transport, utilities, construction industry.
RU-60M, universal respirator
Purpose
The universal respirator is designed to protect the human respiratory system from harmful gas and vapor substances with a concentration in the air of no more than 10-15 maximum permissible concentrations and aerosols in the form of dust, smoke and fog with a concentration in the air of no more than 200 mg/m3 and an oxygen content of not less than 17% by volume.
Compound
The RU-60m respirator is a rubber half-mask with a headband, an exhalation valve, two plastic cuffs with inhalation valves, two replaceable absorbent cartridges and a knitted seal. (The respirator consists of a PR-7 rubber half-mask, a knitted seal, a headband, two DOT 75 filters containing specialized absorber and anti-aerosol filter.)
Characteristics
It is equipped with 4 brands of cartridges. They are specialized depending on the physicochemical and toxic properties of harmful substances. The cartridges differ from each other in the composition of the absorbers, and in appearance - by the markings applied in the center of the perforated mesh of the cartridge. The filter cartridges of the RU-60m respirator, in addition to the absorbing one, have an anti-aerosol filter made of FPP-15 material.
Ammo brands:
"A" - vapors of organic substances (gasoline, kerosene, carbon disulfide, alcohols, ethers, benzene (nitro compounds of benzene) and their homologues, xylene, toluene), chlorine- and phosphorus-containing pesticides. Protective action time 30 min.
"B" - acid gases (sulfur dioxide, hydrogen sulfide, hydrogen chloride), chlorine- and phosphorus-containing pesticides. Protective action time 30 min.
"KD" - ammonia, hydrogen sulfide and their mixtures. Protective action time 30 min.
"G" - mercury vapor and organomercury compounds. Protective action time 15 min.
When using a respirator, at the first appearance of a foreign odor under the mask, you should quickly leave the gas-contaminated area and change the respirator cartridges. An indicator for replacing cartridges in RU-60m respirators is also difficulty breathing as a result of their dustiness. Breathing resistance during inhalation is 78.4 Pa (8 mm water column). Not suitable for protecting the respiratory system from highly toxic substances such as hydrocyanic acid, arsenic, phosphorous, hydrogen cyanide, tetraethyl lead, low molecular weight hydrocarbons such as methane, ethane. The guaranteed shelf life of respirators and cartridges of brands A, B and KD is 3 years, D - 1 year from the date of manufacture. The weight of RU-60m is no more than 350 g.
RPG-01, gas respirator
Purpose
It is used to protect the human respiratory system from gaseous and vaporous harmful substances with a concentration in the air of no more than 0.1% by volume and an oxygen content of at least 17% by volume.
Completeness:
· Half mask KR Sorbi PR-01 with inhalation valves and exhalation valve;
· Two replaceable gas filters KR Sorbi 120 oval, containing a specialized absorber;
· Adjustable headband;
· A bag for carrying and storing a respirator or a belt bag;
Properties.
The PR-01 half mask is made of silicone rubber, which has antiseptic properties, which allows it to be used without a knitted seal, ensures a tight fit of the half mask to the face and a lower suction coefficient along the seal strip. The respirator filters are equipped with new highly efficient absorbers; during testing, the filters are replaced with new ones.
R-2, respirator (GOOD OLD ARMY)
Purpose
Designed to protect the human respiratory system from radioactive dust.
Completeness:
· filtering half mask equipped with an obturator
inhalation and exhalation valves
· Headband
· Spacer
· Nose clip
The outer layer of the filter half mask and the seal are made of non-woven thermally bonded spunbond material.
FORT-P", filtering respirator
Purpose
The filtering respirator "FORT-P" is intended for individual protection of the human respiratory system in conditions of the presence in the ambient air of aerosols of various natures (dust, smoke, fog) with their total concentration not exceeding 200 mg/m3 and the volume fraction of oxygen not less than 18%.
Peculiarities
Provides effective protection against a wide range of hazardous industrial aerosols
Provides reliable protection against a wide range of hazardous aerosols in agriculture (cotton, tobacco, flour, down, wood) and provides reliable protection against hazardous aerosols in domestic conditions (viruses and bacteria, repairs and cleaning of apartments, spraying gardens.)
ROU, general-purpose universal respirator
Purpose
The general-purpose military respirator ROU is designed to protect the respiratory organs, eyes, and face of military personnel from radioactive and ground dust, toxic substances in a secondary cloud and the threat of these substances being carried into closed spaces.
Peculiarities
- Concentrations of toxic substances in the air, mg/dm3 - from 0.005 to 0.05
- Volume fraction of free oxygen in the air, not less, % - 16
- Ambient air temperature, 0C - from –40 to +40.
"RP-2000", anti-aerosol respirator
Purpose
The RP-2000 respirator is designed to protect the human respiratory system from exposure to harmful substances in the form of gases, vapors and aerosols or in the form of gases and vapors (depending on the cartridge used) at a concentration of up to 50 MPC.
Can be used at a volume fraction of free oxygen in the air of at least 18%, temperatures from –30 to +400C and relative humidity up to 98%.
Peculiarities
The RP-2000 respirator consists of a rubber half-mask with a headband, two exhalation valves, two replaceable anti-gas-aerosol (or anti-gas) cartridges with an inhalation valve, containing a specialized absorber and a volume-type anti-aerosol filter.
Anti-dust respirator U-2K
Purpose
The U-2K anti-dust respirator is designed to protect the respiratory system from silicate, metallurgical, mining, cement, coal, radioactive and other dust. It can be used for protection against various dusts and powdered fertilizers.
Compound
U-2K is a filtering half mask, the outer side of which is made of polyurethane foam, and the airtight inner side is made of polyethylene film. Between the foam and the film there is a layer of filter material KPP-15. The cores of two inhalation valves are embedded in the film. The exhalation valve is located on a plastic core in the front part of the half mask and is protected from damage by a screen. To press the half mask to the face in the area of ​​the bridge of the nose there is a nose clip in the form of a shaped aluminum plate.
Characteristics
The presence of inhalation and exhalation valves in the U-2K protects the filter material from moisture, and thereby increases the frequency of its use (up to 30 work shifts), ensuring its use in winter conditions. The service life of a respirator is affected by dust concentration and its dispersion. When cleaning the air from dust, coarse particles are retained in the polyurethane layer, and fine and highly dispersed aerosols are retained in the KPP-15 filter material.
The respirator can be used at temperatures from -25 to +60 C. It is advisable to use U-2K at dust concentrations of no more than 200 mg/m. The service life of a respirator depends on the concentration of dust and its dispersion. The respirator is manufactured in 3 sizes:
· face height up to 109 mm - 1st height;
· 110-119 - 2nd height;
· 120 or more - 3rd height;
Respirator weight 60 g.
Respirator U-2rs
Purpose
The U-2rs anti-dust respirator is designed to protect against various types of dust: plant, animal, metal, detergent powders.
Compound
The U-2rs respirator consists of a three-layer filter half mask with an exhalation valve, a nose clip and two straps made of elastic tape, to which it is attached with a cotton tape.
Characteristics
In a respirator, the first (outer) layer of a half mask, made of porous polyurethane foam 4 mm thick, traps large dust particles, the second (intermediate) layer, made of filter material with an electrostatic charge, traps small particles. The third (internal) - made of non-woven polyester fabric, ensures a comfortable fit of the respirator to the face.
The U-2rs respirator can be safely used at dust concentrations of up to 100 mg/m.
Respirator weight 60 g.
Respirator "Kama-200"
Purpose
Anti-dust respirator "Kama-200" is designed to protect the respiratory system from harmful substances in the form of aerosols: plant, animal, mineral; dust (mining, metallurgical, silicate, cement, tobacco, etc.); protects against poisoning by various types of synthetic bleaches, detergents and powder fertilizers, etc.
Compound
The Kama-200 respirator is a comfortable and convenient half mask. Consists of a valveless filter half mask with a seal, a nose clip and two twill tape straps, to which an elastic cord headband is attached. The filter material is perchlorovinyl fibers with an electrostatic charge, sewn onto gauze, i.e. made of polymer filter material FPP ("Petryanov filter").
Characteristics
The respirator is used for dust concentrations up to 100 mg/m. The multiplicity of exceeding the MPC of aerosols is no more than 100 with a particle diameter of at least 2 µm, and no more than 200 with a particle diameter of more than 2 µm.
Average service life - 2 work shifts. Guaranteed shelf life is 3 years.
Weight - 20g.
Respirator "Petal"
Purpose
The Lepestok respirator is designed to protect the respiratory system from various types of dust (mining, metallurgical, silicate, cement, etc.).
Compound
The respirator consists of a light half mask consisting of a polymer filter material (FPP - “Petryanov filter” made from perchlorovinyl fibers). The frame structure of the half mask in working condition is ensured by a spacer and finished outer gauze. The tight fit is ensured by a rubber cord running along the entire perimeter of the respirator and a plate that compresses the bridge of the nose, as well as by the electrostatic charge of the FPP material, which ensures a reliable fit to the face. It is held on the face with two cotton bands.
Characteristics
The industry produces three models of these respirators - “Petal 200 (200m)”, “Petal -40”, “Petal -5”. The numbers mean that the respirators are used for protection against highly dispersed aerosols (with a particle size of 1 micron) at concentrations exceeding MPC is 200, 40.5 times. Petal -200 has FPP-15 in white, Petal -40 has FPP-15 in orange, Petal -5 has FPP-15 in blue.
The service life of a respirator depends mainly on the concentration of dust, its dispersion and the condition of the aluminum plate. With a high dust concentration, the service life of the respirator is significantly reduced, and it becomes necessary to regenerate it by shaking off the dust. The outer layer of the FPP, contaminated during operation, must be removed, after which a second clean layer of material is exposed, providing reliable protection.
If severe difficulty breathing is felt, the respirator must be replaced with a new one. The multiplicity of exceeding the maximum permissible concentration of aerosols in the air is no more than 200 with a particle diameter of no more than 1 micron. Respirator weight 12 g.
Respirator RPA-1
Purpose
The filtering anti-dust respirator "RPA-1" is designed to protect the respiratory system from silicate, metallurgical, mining, cement, tobacco dust, as well as when working with radioactive and microbial substances, with various dusts, powdered fertilizers, etc.
Compound
The RPA-1 respirator consists of a PR-7 half mask, two plastic cartridges with replaceable aerosol filters, an exhalation valve with a safety clip, to the buckles of which a headband is attached, and a knitted seal.
Characteristics
The respirator can be used at various concentrations of dust in the air and physical activity, but it is most advisable to use it when the content of harmful substances in the atmosphere is over 500 mg/m3. The existing cartridge has a pipe at the bottom of the body with a saddle for the inhalation valve; the flange of the pipe is used to connect it to the half mask. Air enters the respirator cartridge through the louvers in the lid. The filters are made in the form of concentric folds from RFM filter material. Regeneration of the RPA-1 respirator is carried out by shaking off or blowing with clean air in the direction opposite to the flow of exhaled air, with the inhalation valves removed. If after this it becomes difficult to breathe, the respirator and filters should be replaced. The initial inhalation resistance is no more than 29 Pa.
Respirator weight - 250g.
Anti-dust respirator "Breeze-1"
Purpose
The Breeze-1 respirator is designed to protect the respiratory system from various types of aerosols and dust: silicate, metallurgical, mining, coal, textile and various dusts, as well as powdered fertilizers and synthetic detergents.
Compound
The Breeze-1 respirator is a three-layer filter half mask. The outer layer of carbon-containing material, under which there is a filter material of ultra-thin polymer fibers. At the same time, a special additional sorbent layer reduces the irritating effects of acid gases, absorbs vapors of unpleasant-smelling organic substances and solvents if their presence in the atmosphere is not higher than one maximum permissible concentration (1MPC). The respirator has a nose clip in the form of an aluminum plate, as well as an adjustable headband made of a rubber band.
Specifications
The respirator is recommended for use when dust concentrations do not exceed 100 mg/m3. Operating temperature range from 0 to +500C. The Breeze respirator must not be used for protection against non-absorbing substances (such as ethane, butane, ethylene, atycylene, etc.), as well as against highly toxic substances such as hydrocyanic acid, chlorine, phosgene, etc. Initial resistance to constant air at a volume flow of 30 dm3 / min., Pa, no more: - on inhalation - 50, on exhalation - 60.
The penetration coefficient of sodium chloride aerosol through the filter material is at least 3%.
Respirator weight - 14 g.
Guaranteed shelf life - 3 years.
Single cartridge respirator RG-T
Purpose
The RG-T filtering gas-protective reusable respirator is designed to protect the respiratory system from harmful vapors and gaseous substances in the air that exceed the maximum permissible concentration by 15 times.
Compound
The RG-8 respirator is a rubber half-mask with a headband, an exhalation valve, two plastic cuffs with an inhalation valve, one replaceable absorbent cartridge and a knitted seal.
Characteristics
Respirator filter cartridges are specialized for their intended purpose: each group of toxic impurities has its own cartridge with a special composition of absorbents. Cartridge "A" protects against vapors of organic substances: gasoline, kerosene, carbon disulfide, alcohols, ethers, benzene and its homologues (xylene, toluene). “B” - from acid gases: sulfur dioxide, hydrogen sulfide, hydrogen chloride, chlorine-containing organic pesticides. "KD" - from ammonia, hydrogen sulfide and their impurities. "G" - from mercury vapor and mercury organic compounds.
The respirator has a similar degree of protection and a lower price than RU-60m and RPG-67. It is profitable because it is 60% more economical: from the very first replacement of filter cartridges it saves 45%. RG-T is comfortable and reliable to use; it has an increased field of view and a hygienic seal that fits snugly to the face. It's easier to breathe in it. Its weight is 30% less than that of analogues. The operating temperature range is from -40 C to +50 C. The guaranteed shelf life of the respirator is 3 years from the date of manufacture, and the service life is 1.5 years with timely replacement of used filter cartridges.
"VION-K", "VION-V"
Purpose
The VION-K respirator is designed to protect against ammonia and gaseous amines (including aniline, hydrazine), and the VION-V respirator against gaseous substances (except nitrogen oxides), incl. hydrogen fluoride, sulfur trioxide and dioxide, hydrogen chloride, acetic acid.
Compound
Respirators consist of filtering-absorbing half masks with an exhalation valve, an aluminum nose plate and an elastic headband threaded through the loops. The half mask is made from fibrous polymer fiber.
Characteristics
Respirators "VION-K" and "VION-V" are reusable. The possibility of periodic regeneration is provided as their protective resources are consumed. They provide personnel protection from harmful substances in the air that exceed the maximum permissible concentration by 10 times, but not higher than 100 mg/m, and from aerosols with solid or droplet particles larger than 2 microns.
Breathing resistance - 30 Pa.
Weight - 30 g.
RESPIRATOR ALINA 200 AVK
RESPIRATOR ALINA® 200 AVK is specially designed for exiting the danger zone during an emergency.
The Alina respirator was developed using the latest respiratory technology technologies based on fundamental domestic developments.
The ALINA 200AVK respirator has a universal combination of sorption-filtering elements that provides effective protection against a wide range of harmful substances:
- aerosols (including radioactive)
- vapors and gases of organic origin
- basic gases (ammonia, amines, aniline)
- acid gases (chlorine vapor, sulfur dioxide, hydrogen chloride and chlorine-containing products)
- protects against viruses and bacteria.
Shelf life – 5 years. Individual sealed packaging.

In the URSUS online store (Moscow) you can order products for respiratory protection. We are pleased to offer you both respirators of various types, as well as special masks and filters that can ensure normal breathing in difficult working conditions.

Relevance of using the presented products

Many industries are associated with risks to the health of personnel. This is why specialists need protection (from dust, gases, etc.). Even a regular respirator can provide such protection. Specialists will not be at risk of various respiratory diseases.

Of course, only high-quality products can cope with the assigned tasks (ensuring respiratory safety). This is why a respirator should be purchased from large companies (Moscow and other cities).

We take a responsible approach to product supply.

1. Each respirator presented copes with the assigned tasks. It provides protection from both dust and many other influences (depending on the modification).
2. Each sold respirator (dust, etc.) is certified. From us you can buy a respirator that has documents confirming its quality.
3. Any respirator is available to consumers.

The main advantages of the presented products

1. Practicality. All products for respiratory protection (respirators, etc.) are easy to use. Models do not require special care. The respirator can be cleaned even from large amounts of dust.
2. Convenience. The respirator does not limit visibility. If there is a large amount of dust, you can use respirators along with special glasses.
3. High efficiency. Any respirator and other products are capable of protecting the respiratory system from dust, various gases, organic and inorganic substances.
4. High reliability. Any respirator and other personal protective equipment cope with their functions for a long time.
5. Availability. You can buy any products that provide respiratory protection at the best price. A respirator against gases, dust, etc. can be ordered by representatives of not only large but also small companies, as well as individuals.

Advantages of ordering products from URSUS

1. Wide range of products. We offer respirators against acid gases, organic and inorganic vapors, and other substances. You can also order components for the products sold.
2. Convenient catalogue. Thanks to it, you will find your way around the range of respirators and other products for respiratory protection.
3. Help in choosing. Our specialists will provide support to all clients. They will tell you about the products and recommend specific protective equipment (respirators, masks, etc.).
4. Prompt delivery throughout Moscow and throughout Russia. Any respirator to ensure normal breathing in difficult working conditions, other products you ordered will be delivered to you as soon as possible. Transportation of any protective equipment is carried out not only by the transport company, but also by mail.

Contact us! We will offer organ protection (nose, mouth) that meets all your needs.

Providing a person with normal working conditions when exposed to harmful gases, vapors and dust. The 3M respirator is very popular among customers. The 3M company that produces it pays great attention to the quality and reliability of its products. Well-thought-out products allow us to deliver purified air into the lungs without causing harm to our body.

Goals and objectives

Respirators are PPE that are used in a wide range of applications. For example, industrial conditions require certain products, while medical use requires completely different ones. Some respirators are equipped with valves, some with filters. Accordingly, the degree of their protection will vary. The most important advantages of the models are low breathing resistance and light weight, thanks to which you can stay in the respirator for a long time and quite comfortably.

Model classification

Modern respirator masks are available in various types depending on their purpose, design, service life and type of protection mechanism. Depending on the purpose of the product there are:

Anti-dust. They are needed to protect the respiratory system from various types of aerosols. They contain filters made of fine-fiber materials, most often polymer. Their distinctive features include high elasticity, mechanical strength, and high dust holding capacity.

Gas masks. Such models are designed to protect the respiratory system from vapors based on chlorine and phosphorus, as well as organic vapors in the form of acetone, kerosene or gasoline.

Gas-dustproof. Such respirators successfully cope with protecting the respiratory system from gases, vapors, and aerosols, even if they are present in the air at the same time. Such models are created from polymer materials that have insulating properties.

Device

The respirator mask is available in two types. The first is a half mask with a filter element on the front side. It is carried out in different design solutions, and similar products differ in the degree of protection. The second type of masks has breathing valves and a filter design, while sorbents and filters can be changed.

Depending on the protection mechanism, all respirators are divided into filtering and air-supplied. A filter respirator assumes that the air passes through a special layer in which the air is cleaned of harmful impurities. Moreover, such models are supplied with detailed instructions, which indicate the minimum particle size that can be retained by the filter. A supplied respirator involves supplying air either through an individual cylinder or through a special cartridge, where it is produced through a chemical reaction.

Features of 3M products

A 3M respirator is an excellent way to protect your respiratory system and ensure air circulation in dusty or gas-filled conditions. Under this category, a whole range of products of different designs are produced - from a filtering half mask to a full mask. The distinctive features of the products of this brand include the following:

All personal protective equipment is created using modern and high-tech equipment, and each stage of production is carried out under careful control.

The company offers a wide selection of respirators to ensure comfortable working conditions for the user.

The 3M respirator is created on the basis of a special multi-layer fabric, which provides effective filtration with reduced breathing resistance. Using quality materials is the key to protecting your respiratory system from harmful substances.

Thanks to their light weight, 3M models are comfortable and easy to carry. Each of them has high-quality flat elastic bands that provide a secure fit. Convenience is also provided by exhalation valves.

Respirators of this brand can be used in any temperature conditions.

3M 9300 Series

Perhaps the most popular 3M respirator is the 3M 9300 model. It is designed to protect the respiratory system from aerosol particles and can even be used in nuclear industry enterprises. The main feature of these models is their unique three-panel design. If we fold it, we will see a filtering half mask of small thickness.

Each respirator is supplied in sealed packaging, making transportation convenient. The unique design and the use of high-quality materials ensure low breathing resistance and comfortable wearing.

Main differences

This 3M particulate respirator features the following features.

With a three-panel design and high-quality materials, you can choose a mask for each user.

There is a clip inside the mask that gently secures the respirator to the bridge of the nose.

The interior of the model is made of hypoallergenic fabrics, which ensures its safety of use.

Low profile allows for unobstructed viewing.

Increased comfort

The 3M 9332 respirator attracts attention because it is capable of providing effective protection against fine dust, oil and water mists, and metal fumes. It is advisable to use this model in highly dusty conditions, when working with heated metals or asbestos. This model also features a three-panel design, which ensures a comfortable fit to the face. A special parabolic valve, which is built into the respirator, removes moisture and heat in a timely manner, so you can avoid glasses fogging.

The 9300 series is a premium product. In this series, another half-mask respirator attracts attention - 3M 9925. It is designed to protect the respiratory system from welding smoke, while the models are lightweight, efficient, and comfortable. Thanks to the convex shape, the product is comfortable to wear, and a special exhalation valve removes moisture in a timely manner, which is very important when working at high temperatures. This model can also be used to filter unpleasant odors, such as paint or varnish.

Economy models

The 3M 8101 respirator is one of the most affordable (it will cost only 20 rubles). At the same time, the model effectively protects the respiratory system from dust, liquid and solid particles, smoke and fog. This mask has an activated carbon filter layer, and its design is cup-shaped, due to which the mask fits well on the face. There is no valve in this model, but its advantages include:

Effective protection, even if it is required in conditions of high or, conversely, low temperature or humidity changes.

The mask is widely used in such industries as iron production, steel casting, shipbuilding and mechanical engineering, household and agriculture.

The special filter material works stably.

Provides reliable protection against dust, water and non-volatile particles.

Model ZM 8101

Another affordable model is 8101. For such a 3M respirator, the price is approximately 20 rubles. This model successfully copes with protecting the respiratory system from small dust particles and heavy substances contained in the air. Its use is advisable in medical institutions and laboratories, agriculture and mechanical engineering, and during repair work.

In the low price segment (up to 50 rubles per piece) a respirator with a 3M 8112 valve is presented. It is convenient and is widely used in various production processes, as well as during construction work. Copes well with medium levels of dirt. Special protective equipment is expressed in the presence of a parabolic exhalation valve, sweat-absorbing pads on the nose clip, and an elastic hypoallergenic inner layer. The straps can be attached to 4 points, which ensures a good fit to the face.

Models 9320

The main task that respirators perform is respiratory protection. 3M 9320 is considered a reliable model, which is used for protection against polluted air, dust, fog, smog, and oil mist. The features of this model include the following:

Low breathing resistance.

Filtration efficiency.

Easier breathing.

Original design.

The ability to select a mask to suit the features of your face.

Can be combined with safety glasses.

This is a very convenient and easy to use respirator. The photo shows how securely it is fixed on the face, which gives a good and comfortable fit.

Full face masks

The 3M company also produces full-face masks, which are economical, easy to maintain and use, and light in weight. The special mounting method allows the connection of a wide range of lightweight filters. They are needed to protect the respiratory system from various harmful influences. The distinctive features of such products include:

softness and hypoallergenic;

wide view;

resistance to mechanical stress and shock;

special cooling valve that minimizes the accumulation of heat and sweat;

design of two filters, due to which the respirator has low breathing resistance.

Features of half masks

Another popular 3M brand product is half masks with a bayonet mount. The main advantage is the ability to attach a wide range of lightweight filters that will protect against in different forms. the chemical industry, pharmaceuticals and laboratory research are the main areas where such a respirator is used. The photo shows how comfortably this mask fits to the body.

Respirators that force-supply air are very popular. The main task of these devices is to provide the respiratory system with clean air, which is convenient when working in industrial areas with hazardous pollutants. The 3M company has developed a whole range of industrial respirators that have a special filtration system and forced air supply for use in hazardous working conditions.

Features of the models

The main advantage of such models is reliable respiratory protection, thanks to which labor productivity in your production will become even higher. A sophisticated air supply system combined with various protective functions ensures that the worker’s body is reliably protected from harmful influences.

A lightweight, loose-fitting respirator deserves special attention. The photo shows that this is a very convenient thing. The company itself says that such respirators and headgear are created using a computer, so that it is possible to come up with new options for fitting and adjusting sizes. And this, in turn, guarantees that each mask will be worn comfortably.

conclusions

3M brand respirators are high quality products that require minimal maintenance and are characterized by stable protective functions. Thanks to the lightweight design, even when wearing the masks for a long time, there will be no feeling of discomfort, and a comfortable view will open.

To create parts adjacent to the face, elastic and hypoallergenic fabrics are used that will not cause harm or lead to allergies. In addition, in the wide 3M model range you will find respirators with various types of filters. Three standard sizes allow you to choose a model to suit the facial features of a particular user.

Special cooling and ventilation systems ensure free breathing. And different types of filters provide an opportunity to choose a product that will serve as ideal protection in a particular aggressive environment. The basic rules for choosing a respirator include the following:

Determination of the degree of danger.

Determination of the degree of risk in accordance with existing safety standards.

Choosing a suitable model that will completely or partially protect your face.

Studying operating rules. Respirators must be put on correctly, ensuring a tight fit to the face.

This is a means of personal respiratory protection.
Respirators are a lightweight means of protecting the respiratory system from harmful gases, vapors, aerosols and dust. The main task of a respirator is to supply purified air suitable for humans.
Respirator has proven itself to be a reliable means of respiratory protection, and now it is difficult to imagine working in difficult conditions, with an increased risk to human health, without the use of personal protective equipment, including a respirator.

Scope of application respirators is as broad as the number of situations in which this filter device may be needed. So they highlight industrial respirators, which are used in production. An equally common variety military respirators. Produced for the medical industry medical respirators, whose specialization may be, for example, protection against influenza or allergy provocateurs.

The simplest type of respirator is a cotton-gauze dust dressing. Naturally, it cannot provide reliable protection in very dusty conditions. Respirators not equipped with valves are designed for a load in the form of concentrated dust on average up to 100 mg/m3. Respirators equipped with filters can be used to protect against highly dispersed aerosols, the concentration of which can reach up to 400 mg/m3.

Purification of inhaled air from vapor-gas impurities is carried out through physico-chemical processes (adsorption, chemisorption, catalysis), and from aerosol impurities - by filtration through fibrous materials.

Respirators have low breathing resistance and light weight, which are their main advantages. This prolongs the time spent in the respirator and reduces pressure on the face. However, their use is prohibited for protection against highly toxic substances such as hydrocyanic acid, etc., as well as against substances that can penetrate the body through intact skin. In this case it is necessary to use a gas mask, for example gas mask GP-7b, or a gas mask in combination with protective suits, for example protective suit L-1.

Respirators are classified by purpose, design, service life and type of protection mechanism against harmful impurities .

Respirators

By purpose Respirators are divided into:

1. Anti-dust respirators protect the respiratory system from various types of aerosols. Fine-fiber filter materials are used as filters in dust respirators. The most widespread are polymer filter materials of the FP type (Petryanov filter), due to their high elasticity, mechanical strength, high dust holding capacity, and, most importantly, due to their high filtering properties. These include: U2-K respirator, respirator ShB-1"Petal-200", R-2 respirator and R-2U respirator.

2. Gas masks respirators used for protection against vapors of chlorine and organophosphorus compounds, as well as against vapors of organic origin - acetone, kerosene, gasoline, alcohols, etc. The same effects are an indication for the use of a respirator cartridge of grade A. A cartridge of grade B and gas-dust respirators successfully cope with attacks of acid gases, when using a cartridge of grade G - with mercury vapor, with grade KD with exposure to hydrogen sulfide and ammonia. These include respirator RPG-67.

3. Gas-dustproof respirators protect against gases, vapors and aerosols when they are simultaneously present in the air. An important distinctive ability of FP materials made from perchlorovinyl and other polymers with insulating properties is that they carry electrostatic charges, which dramatically increase the efficiency of collecting aerosols and dust. These include respirator RU-60M.

According to their design, respirators are divided into two types:

1. The first refers to half mask design, on the front part of which a filter element is placed.

The filtering half mask of a respirator comes in different designs. Thus, respirators with a converter-type half mask, a molded half mask, and an unmolded filter half mask are distinguished. Respirators, which are a type of filter half mask, are divided into three protection classes. The first class (FFP 1) includes respirators with the ability to clean up to 4 PKD, the second (FFP 2) - up to 12 PKD, representatives of the third class (FFP 3) are filtering half masks up to 50 PKD.

2. The second type of respirator is half mask, which is equipped with breathing valves and a filter structure, sorbents and filters that are changed periodically.

Depending on service life Respirators can be:

1. Single use(ShB-1 “Lepestok”, U-2K, R-2, R-2U), which after working out are unsuitable for further use. Disposable respirators are usually anti-dust.

2. Reusable(RPG-67 respirator, RU-60M respirator) Reusable respirators provide for filter replacement. RPG-67 has several grades that correspond to the brand of filter cartridge. In turn, cartridges differ in the composition of absorbers. There is a marking in the center of the cartridge cover.

By type of protection mechanism Respirators are:

1. Filters, in which the air passes through a special layer - a filter, being cleaned of harmful impurities. Filters come in a variety of varieties and vary in efficiency for a given contaminant particle size. The instructions for the respirator must indicate the minimum particle size it can capture, as well as the conditions under which the respirator is designed. For example, when interacting with paints, varnishes and enamels, you should use filters designed to protect against paint fumes. To protect the respiratory system from smoke or dust, exhaust gases - other, special ones.

2.With air supply, it is supplied either from an individual (autonomous) cylinder or from a special cartridge, where air is produced due to a chemical reaction. Their protective properties are further enhanced by creating a slight air pressure under the mask. Such devices are used when it is necessary to exit or enter an area of ​​hazardous pollution.

There are also combined models of respirators that can operate both in filtration mode and in air supply mode.

How to choose the right respirator

The size of a respirator is selected based on the results of measuring the height of the face (the distance between the point of greatest deepening of the bridge of the nose and the lowest point of the chin).

Rules for trying on a respirator:

— remove the respirator from the package and carefully inspect it for serviceability;
— put the respirator on the face so that the chin and nose are located inside it;
- one non-stretch headband band should pass through the parietal region;
- another non-stretch braid - through the back of the head;
- adjust the tension of the ribbons using buckles;
- press the ends of the nose clip to the nose, without squeezing it too much;
— check the tightness of the half mask to the face by tightly closing the opening of the exhalation valve with your palm and exhale lightly; if at the same time, along the line of contact of the half mask to the face, air does not escape from under the mask, and it only inflates slightly, then the respirator is sealed and the mask fits well; if air escapes in the area of ​​the wings of the nose, squeeze the ends of the nose clip a little tighter;
- if the respirator is not sealed, it is replaced after the size is determined (perhaps it is determined inaccurately);
— after checking, the respirator is placed in a bag and stored in the compartment of the gas mask bag under the front part of the gas mask.
The sealing of RPE can be disrupted by glasses, beards and mustaches.

When using a respirator, it is necessary to periodically check the tightness of the half mask to the face. Moisture may accumulate under the respirator half mask. It is removed through the exhalation valve when bending the head. If a lot of moisture has accumulated and the situation allows it, you can remove the respirator for 1-2 minutes, pour out the moisture and wipe it from the inside.

What to consider when choosing a respirator

You need to choose a respirator taking into account the conditions in which it will be used. Working conditions at enterprises are divided into three categories: I, II - safe and III - dangerous, where the use of RPE is required. Hazardous, in turn, according to the degree of harmfulness, is divided into four classes depending on the coefficient of exceeding the MPC (degree of harmfulness). For example, if RPE is to be used in an enterprise with the first or second degree of hazard, where the maximum permissible concentration is exceeded by 1.1-10 maximum permissible concentrations, the optimal choice would be a lightweight anti-gas aerosol respirator in the form of a filtering half mask. It is also suitable for protection against harmful vapors and gases at the third degree of harmfulness, where the maximum permissible concentration is exceeded from 3 to 20.

When choosing a respirator, you must also take into account the type of activity and the location of the employee in the hazardous area. For example, when constantly working in a hazardous area and performing labor-intensive work, it is preferable to use lightweight respirators. It is also necessary to take into account the location of the dangerous and safe (where wearing a respirator is not necessary) zones relative to each other. If the safe area is located at a significant distance or the worker must walk, overcome obstacles, climb or climb stairs, the use of a supplied air respirator is not practical. In such cases, a filter type of RPE will be much more convenient. But, since such models are intended only for purifying inhaled air, they can only be used in areas with sufficient oxygen concentration. But in rooms where the content of pollutants in the air is so high that filtering respirators cannot cope, and the work requires mobility, it is better to use models with chemical cartridges. Such devices are usually equipped with an indicator that signals the end of the cartridge's life and thereby warns of the possible ingress of a contaminant.