OSHA approves new respirator fit testing protocols
OSHA last week issued a final rule approving two additional quantitative fit testing protocols for inclusion in appendix A of the Respiratory Protection Standard. These protocols are:
Both protocols are variations of the original OSHA-approved ambient aerosol CNC protocol, but have fewer test exercises, shorter exercise duration, and a more streamlined sampling sequence. The new rule becomes effective September 26, 2019.