[Code of Federal Regulations]
[Title 42, Volume 1]
[Revised as of October 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 42CFR84.80]

[Page 521]
 
                         TITLE 42--PUBLIC HEALTH
 
    CHAPTER I--PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN 
                                SERVICES
 
PART 84_APPROVAL OF RESPIRATORY PROTECTIVE DEVICES--Table of Contents
 
              Subpart H_Self-Contained Breathing Apparatus
 
Sec. 84.80  Interchangeability of oxygen and air prohibited.

    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.