Respirator Selection, Use, Fit Testing, and Care
Selection and use
Respirator selection follows a written program with a respiratory protection program administrator, written procedures, and training. Selection depends on the hazard, expected exposure, and assigned protection factor (APF). For asbestos, HEPA filters are required; PAPRs and supplied-air/SCBA are used for higher exposures.
Fit testing is required before use and annually thereafter, and whenever a different respirator model is used. Qualitative fit testing (e.g., saccharin, Bitrex) relies on taste/smell; quantitative fit testing measures leakage (e.g., PortaCount). A user seal check is performed each time the respirator is donned, distinct from fit testing.
Care: clean and disinfect after use, store properly, inspect before each use, replace filters per manufacturer schedule or when damaged/loaded.
Traps
- Confusing user seal check (daily) with fit test (annual/quantitative or qualitative).
- Forgetting fit testing is required for tight-fitting respirators, not just training.
- Using a respirator without a medical evaluation.
- Assuming any HEPA filter fits any respirator; use manufacturer-approved cartridges.
Rule of thumb
Medical evaluation, then fit test, then training, then use. Seal check every donning; fit test annually.
Worked example
A new worker is issued a full-facepiece PAPR. Before use: medical clearance, fit testing for that model (quantitative or qualitative as appropriate), training, and a user seal check each time it is worn.