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Air Purifying Respirators
Unlike other types of hazards, airborne contaminants are often invisible because of their size or nature. You may not be able to see, feel or even smell them. An airborne contaminant is any type of material or gas that does not normally occur in the atmosphere.
Preventing airborne contaminants from entering the workplace and providing adequate ventilation are the first steps that should be taken. Sometimes this is not possible and respiratory protective equipment must be worn.
An important part of respiratory protection is selecting the correct type of respirator for the type of contaminant. Certain types of respiratory protective equipment are designed to protect you against some airborne contaminants but not others.