54-3-16: APPENDIX A:
APPENDIX A
RESPIRATOR SELECTION GUIDELINES
Hazard
Respirator
Hazard
Respirator
Oxygen deficiency:
   Immediately dangerous to life or health1
Self-contained breathing apparatus (SCBA)
   Not immediately dangerous to life or health
SCBA; any supplied air respirator
Gas and vapor contaminates:
   Immediately dangerous to life or health1
Positive pressure, SCBA; combination positive pressure supplied air respirator and auxiliary self-contained air supply
   Not immediately dangerous to life or health
Any supplied air respirator; gas mask; chemical cartridge respirator
Particular contaminates
Any supplied air respirator including abrasive blasting respirator; any air purifying respirator with particulate filter
Gaseous and particulate contaminates:
   Immediately dangerous to life or health1
Positive pressure, SCBA; combination positive pressure supplied air respirator and auxiliary self-contained air supply
   Not immediately dangerous to life or health
Any supplied air respirator; gas mask; chemical cartridge respirator
Firefighting
Any positive pressure, SCBA
 
Note:
1.   Immediately dangerous to life or health is any condition that poses either an immediate threat to life or health, or an immediate threat of severe exposure to contaminates, such as radioactive materials, which is likely to have adverse delayed effects on health.
(2019 Compilation)