Code of Federal Regulations · Section

§ 84.178 — Breath Response Type, Airflow Resistance Test—Papr Classes He And Papr100

42 C.F.R. § 84.178

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Resistance to airflow will be measured with a breathing machine as described in § 84.88.

(a) Minimum inhalation resistance must be greater than zero mm of water-column height.

(b) Maximum exhalation resistance must be less than 89 mm of water-column height.

42 C.F.R. § 84.177 42 C.F.R. § 84.179

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