WHEN OSHA's revised Respiratory Protection Standard for General Industry, 29 CFR 1910.134, became effective on April 8, 1998, it provided employers with an all-inclusive reference source for fit ...
Quantitative fit testing is the preferred testing method. The ambient aerosol condensation nuclei counting (CNC) method, using a Portacount® Plus instrument, has been selected as the quantitative fit ...
"Selecting the proper respirator is a vital step in protecting a user against potential over-exposures and adverse health effects," said OSHA Administrator John Henshaw. "The additional fit-testing ...
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