42 C.F.R. § 84.1139 Air velocity and noise levels; hoods and helmets; minimum requirements.
Title 42 - Public Health
Noise levels generated by the respirator will be measured inside the hood or helmet at maximum airflow obtainable and shall not exceed 80 dBA.
Title 42: Public Health
PART 84—APPROVAL OF RESPIRATORY PROTECTIVE DEVICES
Subpart KK—Dust, Fume, and Mist; Pesticide; Paint Spray; Powered Air-Purifying High Efficiency Respirators and Combination Gas Masks
§ 84.1139 Air velocity and noise levels; hoods and helmets; minimum requirements.
