42 C.F.R. § 84.80 Interchangeability of oxygen and air prohibited.
Title 42 - Public Health
Approvals shall not be issued by the Institute for any apparatus, combination of respirator assemblies, or any apparatus or respirator component which is designed or constructed to permit the interchangeable use of oxygen and air.
Title 42: Public Health
PART 84—APPROVAL OF RESPIRATORY PROTECTIVE DEVICES
Subpart H—Self-Contained Breathing Apparatus
§ 84.80 Interchangeability of oxygen and air prohibited.
