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Respirator masks filter air for breathing and protect against pollutants. They come in various types, including disposable and reusable options with filter cartridges, and can be used with eye protection and hoods. They are recommended for those working in hazardous conditions and can also be useful for household projects and in polluted environments.
A respirator mask is a piece of equipment worn over the mouth and nose to provide filtered air for breathing. Respiratory masks are used for safety in environments where people may be at risk from inhaling pollutants ranging from paint fumes to dangerous bacteria. Masks designed for use in a variety of settings are available through safety supply companies, scientific suppliers and construction supply companies. In some regions it is recommended to keep a basic respirator on hand in an emergency kit, and people who work in conditions where they could inhale hazardous substances are usually advised to wear respirator while working.
The most basic respirator mask is a simple shield made of fibrous material. The mask is designed to trap particulate materials such as dust, soot, sawdust and so on. Fumes can still enter through the mask and even very small particles can enter the shield. These types of respirator masks are rated by the size of the particulate matter excluded to give people an idea of the settings in which their use is appropriate. A rating like N95 means that tests show the mask blocks 95% of particles.
Other respirator masks consist of filter cartridges attached to the nose and mouthpiece. These are designed to trap more particulate matter and can also filter gases in the air for safety in environments where people may be exposed to these types of hazards. The mask can also be worn with eye protection to keep your eyes safe, along with other accessories such as hoods to cover your face and neck. In a compressed air respirator, the mask creates an airtight seal and the wearer breathes air from a separate air supply. This option is used in environments where it is not possible to completely filter the air for safety through the mask alone.
Some models of respirator masks are disposable. These are often seen in healthcare and construction settings, where people want protection from underlying hazards and may need to change masks between patients or work. Others are designed to be reused. Cartridges can be replaced as needed in cartridge-design masks, allowing people to insert new cartridges as older ones become clogged. Some masks can be sterilized between uses to allow more people to use them.
Having a respirator mask around can be useful for working on household projects where people will be painting, sanding, or engaging in other activities where particulate materials and fumes will be released. Such masks can also be useful if there is a warning about epidemic diseases or in regions where smog and pollution are heavy. Wearing masks can protect the lungs and airways while people are outdoors in polluted conditions.
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