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)