42 CFR 84.77 - Inhalation and exhalation valves; minimum requirements.

Regulations last checked for updates: Nov 22, 2024

Title 42 - Public Health last revised: Nov 19, 2024

§ 84.77 - Inhalation and exhalation valves; minimum requirements.

(a) Inhalation and exhalation valves shall be provided where necessary and protected against damage and distortion.

(b) Exhalation valves shall be—

(1) Protected against external influence; and

(2) Designed and constructed to prevent inward leakage of contaminated air.

authority: 29 U.S.C. 651

source: 60 FR 30355, June 8, 1995, unless otherwise noted.

cite as: 42 CFR 84.77