Reference

OSHA 1910.134(f) requires annual fit testing for all tight-fitting respirators. This guide covers 4 QLFT protocols (isoamyl acetate, saccharin, Bitrex, irritant smoke), 3 QNFT protocols (generated aerosol, PortaCount, CNP), pass/fail fit factor thresholds, the facial hair rule, recordkeeping, and a 6-step full-face APR onboarding example.

OSHA 29 CFR 1910.134 governs respiratory protection programs across general industry and construction. This guide covers every major section: written programs, APF selection, medical evaluations, fit testing, user seal checks, cartridge change-out, IDLH requirements, training, recordkeeping, and a step-by-step compliance example.