Respirator Fit Testing
A procedure that verifies a tight-fitting respirator seals properly on a specific worker, required before use and annually.
Key facts
- Verifies a tight-fitting respirator seals on a specific worker.
- Required before first use and at least annually.
- Follows a medical clearance evaluation.
What it means
Fit testing — qualitative or quantitative — confirms a respirator forms an effective seal for a particular person and model. OSHA requires it before initial use and at least annually, after a medical clearance evaluation. Tracking who is cleared, which model they passed on, and when the test expires is a recurring respiratory-protection workflow.
Frequently asked
What does respirator fit testing prove?
That a particular respirator model forms an effective seal on a specific person. It's done qualitatively or quantitatively before initial use and at least annually.
Does fit testing replace medical clearance?
No. A medical evaluation must clear the worker to wear a respirator first; fit testing then confirms the seal. Both are required, and both expire and must be tracked.
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