Regulations last checked for updates: May 03, 2025

Title 42 - Public Health last revised: Apr 15, 2025
§ 84.140 - Air velocity and noise levels; hoods and helmets; minimum requirements.

Noise levels generated by the respirator will be measured inside the hood or helmet at maximum airflow obtainable within pressure and hose length requirements and shall not exceed 80 dBA.

authority: 29 U.S.C. 651
source: 60 FR 30355, June 8, 1995, unless otherwise noted.
cite as: 42 CFR 84.140