We look at the origins of fit testing, the differences in regional legislation, and take a broad view as to its methodology and efficacy.
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Whitepaper
Face Fit Testing
Face fit testing is required in all tight-fitting respirators, confirming whether ambient air enters when the user breathes. Air always follows the path of least resistance, and without this test, the respirator may not protect from hazardous particles. Buying a respirator is easy, but understanding what is required to make it work can be complicated.