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42 CFR 84.156

§ 84.156 Airflow resistance test; Type C supplied-air respirator, demand class; minimum requirements.

United States · 42 CFR — Public Health · Status: effective

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42 CFR 84.156, § 84.156 Airflow resistance test; Type C supplied-air respirator, demand class; minimum requirements, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/201769
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(a) Inhalation resistance shall not exceed 50 millimeters (2 inches) of water at an air flow of 115 liters (4 cubic feet) per minute. (b) The exhalation resistance to a flow of air at a rate of 85 liters (3 cubic feet) per minute shall not exceed 25 millimeters (1 inch) of water.

Legislative history

This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.