Guides

A respirator user seal check is the self-performed test you must do every time you put on a tight-fitting respirator before entering a hazardous atmosphere. OSHA 1910.134 Appendix B-2 requires it. A passing seal check confirms the respirator is properly seated and the face seal is intact for that…

OSHA 29 CFR 1910.134 requires annual fit testing for all workers who use tight-fitting respirators — but the regulation allows two fundamentally different methods: QLFT (qualitative) and QNFT (quantitative). Both satisfy the annual requirement for most half-face respirators. The right choice…