Code of Federal Regulations · Section
§ 84.52 — Respiratory Hazards; Classification
42 C.F.R. § 84.52
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Respirators described in subparts H through L of this part shall be classified as approved for use against any or all of the following respiratory hazards:
(a) Oxygen deficiency;
(b) Gases and vapors; and
(c) Particles, including dusts, fumes and mists.
Authorizing Statute
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Duties of United States Bureau of Mines30 U.S.C. § 3