
The Silicosis Comeback: Engineered-Stone Workers and the Respirator Program That Should Have Stopped It
Silicosis was supposed to be a disease of the past. Instead it came back — fast and fatal — among young men cutting engineered-stone countertops. California alone has confirmed 219 cases, at least 14 deaths, and 26 lung transplants. This is the data, the dust, and the OSHA respirator program that is the last line of defense when the controls upstream fail.

Facial Hair and Respirators: OSHA's Beard Rule and the PAPR Fix
OSHA bars facial hair that crosses a tight-fitting respirator's seal (1910.134(g)(1)(i)). This guide covers what is actually allowed, the clean-shaven fit-test rule, and the loose-fitting PAPR fix for beards you can't shave.

N95 vs P100: The NIOSH Respirator Filter Classes, Decoded
The letter is oil resistance, the number is efficiency. This guide decodes the nine NIOSH filter classes (42 CFR 84), N95 vs P100 in practice, and why the filter doesn't change your assigned protection factor.

OSHA Respirator Fit Testing in Construction: Qualitative vs Quantitative & Who Pays
OSHA requires fit testing before a tight-fitting respirator is used and at least annually. This guide covers qualitative vs quantitative, when each applies, and who pays.

OSHA Respiratory Protection Program: Complete Compliance Guide
Everything you need to know about OSHA's Respiratory Protection Standard (29 CFR 1910.134). From fit testing to medical evaluations, written programs, and SCBA requirements — a complete employer guide for 2026.

Forklift Evaluations & Respirator Fit Tests: The Two-Clock OSHA Compliance Problem
Forklift operator evaluations renew on a 3-year clock; respirator fit tests renew every 12 months. Here are both rules, the exact triggers, a side-by-side table, and how to never miss either deadline.