Respiratory protection must be worn whenever you are working in a hazardous atmosphere. The appropriate respirator will depend on the contaminant(s) to which you are exposed and the protection factor (PF) required. Required respirators must be NIOSH-approved and medical evaluation and training must be provided before use.
OSHA Respirators QuickCard
A quick reference card on the types of respirators and what they protect against
September 4, 2012
