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What is a respirator?


What is a respirator?

A respirator is a protective device that covers the nose and mouth or the entire face or head to guard the wearer against hazardous atmospheres. Respirators may be:

 

1.Tight-fitting — that is, half masks, which cover the mouth and nose and full facepieces that cover the face from the hairline to below the chin;

2.Loose-fitting, such as hoods or helmets that cover the head completely.In addition, there are two major classes of respirator;

3.Air-purifying, which remove contaminants from the air;

4.Atmosphere-supplying, which provide clean, breathable air from an uncontaminated source. As a general rule, atmosphere-supplying respirators are used for more hazardous exposures.


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