42 CFR 84.140 - Air velocity and noise levels; hoods and helmets; minimum requirements.

Regulations last checked for updates: Feb 10, 2026

Title 42 - Public Health last revised: Feb 02, 2026

View all text of Subpart J [§ 84.130 - § 84.163]

§ 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