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Federal regulations · Through 2026-08-25 · Newer source version available

42 CFR 84.154: Airflow resistance test; Type B and Type BE supplied-air respirators; minimum requirements.

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Where this section sits in the code
  1. Title 42—Public Health
  2. CHAPTER I—PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES
  3. SUBCHAPTER G—OCCUPATIONAL SAFETY AND HEALTH RESEARCH AND RELATED ACTIVITIES
  4. PART 84—APPROVAL OF RESPIRATORY PROTECTIVE DEVICES
  5. Subpart J—Supplied-Air Respirators

(a) Airflow resistance shall be determined when the respirator is completely assembled with the respiratory-inlet covering and the hose in the maximum length to be considered for approval, coiled in loops 1.5 to 2.1 m. (5 to 7 feet) in diameter.

(b) Airflow resistance shall not exceed 38 mm. (1.5 inches) of water-column height to air drawn at the flow rate of 85 liters (3 cubic feet) per minute.

(c) The exhalation resistance shall not exceed 25 mm. (1 inch) of water-column height at this flow rate.

Collected 2026-08-27T02:26:11Z. Source file · JSON

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