Mask and respirator
The need to use satellites for the respiratory system arises when the maximum permissible concentration of hazardous substances in the air is violated in the room. Gases such as ozone, nitrogen oxides or carbon oxides can accumulate during welding. There are situations when the amount of harmful gases is lower than the dangerous one, while the concentration of dust exceeds the norm. In these cases, reusable dust masks are used to protect the respiratory system.
When the concentration of gases and dust exceeds the permissible limits, and the work takes place in a closed room or hard-to-reach place (for example, a huge container), welders must be provided with an additional supply of air through breathing devices. As such, it is recommended to use hose gas masks "PSh-2-57" or special breathing machines "ASM" and "3M".
The eyes of welders must be protected from the harmful radiation of the electric arc, as well as from the hot splashes that occur during welding. For protection, various shields with a screen and masks with glass inserts are used. For such categories of personnel as a gas cutter or an auxiliary worker, the use of special glasses is applicable.
The glasses completely cover the eye area and provide indirect ventilation. They are designed to protect the retina from ultraviolet radiation. Ancillary workers must also wear special glasses. Glasses are often equipped with light filters, thanks to which ultraviolet and infrared rays do not affect the retina of the eyes, they do not blind the eyes from visible radiation.
Welding mask with respirator
A welding mask with a respirator, unlike a standard half mask, protects the entire face from hazardous effects. The supplied air welder mask consists of
the following elements:
- Mask (shield) of the welder with a light filter and a protective cover for a snug fit.
- An air duct (hose) that connects (collet connection) the mask to the fresh air supply unit.
- The air supply unit (turbo unit) consists of a fan, a filter and an autonomous battery (power supply).
The removable battery must be recharged periodically using the supplied charger. Depending on the respirator model, the power source can work without recharging for a different amount of time, at least 8 hours. The device can withstand about 1000 recharges.
Various materials can be used as a filter.
Modern models have different levels of air flow - from 140 to 250 l / min.
A light indicator or sound sensor notifies the welder of a problem, a deviation from the normal mode, for example, a decrease in air flow. This can be caused by a clogged filter or reduced battery power.
Put on the mask and start the feed unit immediately before welding. Earlier use will drain the battery more quickly.
The principle of the mask should be considered. Clean air generated by the fan enters the filter, and then through the hose under the mask, directly into the welder's respiratory zone. The exhaust air flows out through the non-return valve.
Most models are additionally equipped with a fire-resistant belt for attaching the unit, an air pressure indicator and a replaceable filter.
Speedglas 9100FX Air
- Manufacturer - 3M (USA).
- Speedglas 9100FX Air welding helmet with Adflo purified air supply system.
- The presence of an auto-darkening light filter (size 54 x 107 mm.) With a degree of shading 5, 8 and 9-13.The welder can fix any degree of shading.
- The air supply system protects the contractor from aerosols (up to 500 MPC) and gases.
- The battery capacity allows continuous operation for 7-9 hours.
- Filter type - anti-aerosol.
Peculiarities
There are standard norms that govern the issuance of free ammunition to welders. These rules have been developed and approved, they are binding. If work in the cold season is carried out outdoors or indoors without heating, welders should be given a warm set of clothing with a special lining. To protect workers from frostbite when in contact with frozen ground or snow, special mats are used, made of refractory fabrics with an elastic layer.
To protect hands, GOST offers several options. These are tarpaulin mittens with or without leggings. The second option is split leather mittens, which can also be elongated. As special footwear, it is allowed to use semi-boots made of Russian leather or other type of leather.
It is important that special shoes have shortened tops.
If there is a danger of electric shock during work, the welder must wear dielectric gloves and a mat when sitting or lying down. These requirements apply to especially dangerous premises and places where there is no automatic shutdown of the open circuit voltage.
The management of the enterprise is also obliged to assess workplaces in terms of the risk of head injury. To avoid injury, professionals must wear helmets. For greater convenience, there are special helmets with a protective shield. When there is simultaneous welding work by several workers on the same vertical line, it is necessary to install protection between them: awnings or blank decks. Then sparks and stubs will not fall on the welder located below.
Filtering half masks 3M
The most advanced technologies and innovative developments will protect your breathing: the patented 3M filter material, 3M Scotchgard coating, 3M Cool Flow exhalation valve. All this provides a high level of protection and comfort during operation. In production, 3M half masks help to improve performance, minimize the risk of getting sick and save money (after all, 3M respirators are not only reliable, but also very durable).
All 3M filtering half masks meet all the requirements of the European standard EN 149: 2001 + A1: 2009, GOST R 12.4.191-2011, as well as TR TS 019/2011 for filtering half masks. They are effective protection against solid particles and particles of non-volatile liquids. Models are classified according to filtration reliability and maximum total ingress (FFP1, FFP2 and FFP3) and dust resistance.
Our catalog contains disposable and reusable respirators, half masks that protect against dust, paint, toner, water-in-oil aerosols, metals (mercury) and fumes.
Here you will find both reusable and disposable respirators (petals) 3M:
Half masks 3M VFlex
obediently follow facial expressions, thus ensuring the comfort of work, speaking and just breathing. They are compatible with 3M Hearing & Vision PPE, have excellent performance and are equipped with side tabs and an adjustable nose clip. The models are available in 2 sizes, making them suitable for almost any type of person.
Half masks 3M K100P
great for professional use. Distinctive features of the series are favorable price and high level of protection. The models are specially designed for operation in difficult and harsh conditions. The 3M K113P, for example, is approved for use even in the nuclear industry. The protection level of these particulate respirators can be identified by their color: yellow for FFP1, blue for FFP2, red for FFP3 +.
3M Series 8000 Respirators
- this is ease and comfort of breathing and at the same time reliable protection against fine dust and aerosols.
To ensure maximum comfort during long-term wear, the mask is equipped with a nose clip and a seal, has a cup shape and 4 attachment points for the headband elastic bands. The 8822 and 8812 half masks are equipped with a Cool Flow exhalation valve, which, in combination with a crush-resistant shell, provides comfort even at high temperatures and in high humidity conditions.
Respirator 3M 8300
- flexible and durable half mask with increased comfort and high wear resistance. The padded inner lining, nose clip, exhalation valve and other structural elements are designed to provide maximum protection without discomfort.
The model finds application in pharmaceuticals, healthcare institutions, auto and shipbuilding, wood and metal processing plants and in the chemical industry, during construction work and work with asbestos.
Aura 9300+.
The half mask is with
storage 3-panel construction. It is able to adapt to facial expressions, thereby ensuring optimal fit to any face shape. The model can be successfully applied to work in high-temperature and humid environments. The special design of the nose part of the respirator reduces the risk of fogging of the glasses. And the advanced 3M filtration technology and the 3M Cool Flow exhalation valve contribute to ease of breathing with a fairly high level of protection.
clothing
GOST contains standards for protective materials. Welders are shown to be at work in suits, consisting of a jacket and trousers belonging to the category "Tr", which means protection against splashes of molten metal. In the cold season, employees are supposed to wear protective clothing "Tn". It is specially designed to protect against cold and frost. For example, "Тн30" means that the suit can be used at temperatures up to 30 ° С.
Usually a work suit is a jacket and trousers. It must be sewn in accordance with GOST, not too heavy and restrict movement.
This means that the fabric of the garment does not deteriorate or ignite from glowing sparks. Most often, they take a tarp or leather for sewing. The material is treated with special heat-resistant substances.
Lighter cotton fabrics are acceptable. However, they must be thoroughly impregnated with a chemical compound that protects against high temperatures. Polymeric materials are applied to the skin to make it fire resistant. Acrylic resins are used for their manufacture. The resulting split must be able to withstand high temperature conditions for at least 50 seconds.
Isolating respirators
No matter how effective a respirator is for working with car paintwork, there is always a concentration that can overcome this protection. In addition, charcoal filters do well with most substances, but they do not filter isocyanides well. The only way out at a high concentration of such substances in the air is the complete isolation of the respiratory system.
Isolation systems are designed to meet the Maximum Anticipated Degree of Protection (EPO) of 50-10000. OSO filtering masks correspond to levels 5-50. Prices are high even for ventilated masks, but they can be made by upgrading the RPG-67 respirator: by connecting the air supply from the compressor to it through any vinyl hose of a suitable size.
Additional Information: What respirators can be used when painting
Filtration of car paint products is the most effective health protection. In terms of design, all PPE are different, but they pursue the same result. The standard respirator for filtering the inhaled air is a half mask that covers all the respiratory tract with a certain element (adapted to the environmental conditions).
The filters in the respirator can be anti-dust, universal and gas filters.
Respirator type “Astra - 2” is a half mask made of elastic rubber with one exhalation valve and cartridges with two inhalation valves. Replaceable filters are placed in the cartridges. The advantages are that it can be applied even in fog, rain. Respirator RU - 60 - rubber half mask, has two filter cartridges and goggles. Use in cases where gaseous, vaporous substances are present during operation, which are toxic at a concentration not exceeding the norm by no more than 5 times. Filter cartridges go to it: A, B, KD, G, charged with the necessary absorbers, anti-aerosol filters with protection against a specific group of toxic substances.
The filter respirator is based on the formation and retention of an air cushion. There is a filter inside the mask that traps and absorbs air. After the purified stream enters the respiratory tract.
As a rule, a layer of cotton wool or a charcoal filter acts as a filter. The charcoal filter is a reliable absorbent against airborne paint fines and debris. But such a filter is helpless against chemical vapors, especially isocyanite.
It is this substance that is released when the paint dries, kneading or coating with a fixative. An insulating respirator is provided for such cases. The main difference between this personal protective equipment is that it protects the respiratory tract from the external environment.
Igor! The new half mask should * take root * on your face for several days! At first, it is uncomfortable, does not fit well to the face. How can you use acrylic powder when applying gel polish? And then it accepts your configuration. Adjust the tension of the elastic bands, adjust it under the bridge of the nose so that the nose breathes, blow a gun * on the anthers *.
And when joining carbon filters for half mask make sure that the guide slots match in size, then the connection is tight! Is it hard to breathe right away in a new mask, or later, in the process of work?
Respiratory protection should not be neglected during woodworking. There is evidence that the wood dust of some trees is carcinogenic. Therefore, when sanding wood and working on a woodworking machine, it is imperative to use respirators with protection against non-toxic dust, for example, an inexpensive and reliable respirator 3M (8 102) dust FFP2 12 pdc.
- sprayers, solvents, hardeners, powder and water-based paints require individual selection of a respirator after studying their composition;
- when working with chemicals, disposable cloth masks are strongly discouraged;
- the reusable model with replaceable filters is also more economical and flexible in use;
- Highly contaminated environments may require a self-contained respirator.
It is necessary to be especially careful with the performance check. If the mask of the device is not tightly pressed to the face, and the design is designed for maximum tightness, the respirator will not be able to isolate the respiratory system from the external environment, thus filtering the polluted air will no longer help.