The National Institute for Occupational Safety and Health (NIOSH) mission is to promote safe and healthful working conditions by conducting research and providing recommendations to diminish hazardous situations within occupational settings. However, there are situations in which the same respiratory hazards that can be faced by workers are also a potential concern to the public. Examples of respiratory hazards of interest to the general public: Air pollution1 Wildfires2 Indoor mold growth after a flood3 Bacteria and viruses4 A respirator is one method for reducing personal exposure to particulate respiratory hazards. NIOSH has been certifying respirators and conducting research on these
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