| Symbols, Code Components, and Codes Used for Respirator Selection |
| Symbols: |
| Item |
Definition |
| ¥ |
At concentrations above the NIOSH REL, or WHERE there is no REL, at any detectable concentration |
| § |
Emergency or planned entry into unknown concentrations or IDLH conditions |
| * |
Substance reported to cause eye irritation or damage; may require eye protection |
| £ |
Substance causes eye irritation or damage; eye protection needed |
| ^ |
If not present as a fume |
| ¿ |
Only nonoxidizable sorbents allowed (not charcoal) |
| † |
End of service life indicator (ESLI) required |
| APF |
Assigned protection factor |
| TBAL |
To be added later |
| Code Component: |
| Item |
Definition |
| CCR |
Chemical Cartridge respirator |
| D |
Dust respirator (If an independent code); or a dust filter |
| F |
Full facepiece |
| Fu |
Fume filter |
| GMF |
Air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister |
| M |
Mist filter |
| PAPR |
Powered, air-purifying respirator |
| SA |
Supplied-air respirator |
| SCBA |
Self-contained breathing apparatus |
| AG |
Acid gas cartridge or canister |
| CF |
Continuous flow mode |
| HiE |
Air-purifying respirator with a high-efficiency particulate filter (If an independent code); or a high-efficiency particulate filter |
| HiEF |
Air-purifying, full-facepiece respirator with a high-efficiency particulate filter |
| OV |
Organic vapor cartridge or canister |
| PD,PP |
Pressure-demand or other positive-pressure mode |
| S |
Chemical cartridge or canister providing protection against the compound of concern |
| T |
Tight-fitting facepiece |
| XS |
Except single-use respirator |
| XSQ |
Except single-use and quarter-mask respirator |
| Code: |
| Item |
Definition |
| CCRFAGHiE (APF=50) |
Any chemical cartridge respirator with a full facepiece and acid gas cartridge(s) in combination with a high-efficiency particulate filter |
| CCRFOV (APF = 50) |
Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s) |
| CCRFOVDMFu (APF = 50) |
Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s) in combination with a dust, mist, and fume filter |
| CCRFOVHiE (APF = 50) |
Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s) in combination with a high-efficiency particulate filter |
| CCRFS (APF = 50) |
Any chemical cartridge respirator with a full facepiece and cartridge(s) providing protection against the compound of concern |
| CCRFSHiE (APF = 50) |
Any chemical cartridge respirator with a full facepiece and cartridge(s) providing protection aginst the compound of concern and having a high-efficiency particulate filter |
| CCROV (APF = 10) |
Any chemical cartridge respirator with organic vapor cartridge(s) |
| CCROVAG (APF = 10) |
Any chemical cartridge respirator with organic vapor and acid gas cartridge(s) |
| CCROVDM (APF = 10) |
Any chemical cartridge respirator with organic vapor cartridge(s) in combination with a dust and mist filter |
| CCROVDMFu (APF = 10) |
Any chemical cartridge respirator with organic vapor cartridge(s) in combination with a dust, mist, and fume filter |
| CCROVHiE (APF = 10) |
Any chemical cartridge respirator with organic vapor cartridge(s) in combination with a high-efficiency particulate filter |
| CCRS (APF = 10) |
Any chemical cartridge respirator with organic vapor cartridge(s) providing protection against the compound of concern |
| D (APF = 5) |
Any dust respirator |
| DM (APF = 5) |
Any dust and mist respirator |
| DMF (APF = 10) |
Any dust and mist respirator with a full facepiece |
| DMFu (APF = 10) |
Any dust, mist and fume respirator |
| DMXSQ (APF = 10) |
Any dust and mist respirator except single-use and quarter-mask respirators |
| DXSQ (APF = 10) |
Any dust respirator except single-use and quarter-mask respirators |
| GMFAG (APF = 50) |
Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted acid gas canister |
| CMFAGHiE (APF = 50) |
Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted acid gas canister having a high-efficiency particulate filter |
| GMFOV (APF = 50) |
Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister |
| GMFOVAG (APF = 50) |
Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor and acid gas canister |
| GMFOVAGHiE (APF = 50) |
Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor and acid gas canister having a high-efficiency particulate filter |
| GMFOVDMFu (APF = 50) |
Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister in combination with a dust, mist, and fume filter |
| GMFOVHiE (APF = 50) |
Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having a high-efficiency particulate filter |
| GMFS (APF = 50) |
Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern |
| GMFSHiE (APF = 50) |
Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern and having a high-efficiency particulate filter |
| HiE (APF = 10) |
Any air-purifying respirator with a high-efficiency particulate filter |
| HiEF (APF = 50) |
Any air-purifying, full-facepiece respirator with a high-efficiency particulate filter |
| PAPRAG (APF = 25) |
Any powered, air-purifying respirator with acid gas cartridge(s) |
| PAPRAGHiE (APF = 25) |
Any powered, air-purifying respirator with acid gas cartridge(s) in combination with a high-efficiency particulate filter |
| PAPRD (APF = 25) |
Any powered, air-purifying respirator with a dust filter |
| PAPRDM (APF = 25) |
Any powered, air-purifying respirator with a dust and mist filter |
| PAPRDMFu (APF = 25) |
Any powered, air-purifying respirator with a dust, mist, and fume filter |
| PAPRHiE (APF = 25) |
Any powered, air-purifying respirator with a high-efficiency particulate filter |
| PAPROV (APF = 25) |
Any powered, air-purifying respirator with organic vapor cartidge(s) |
| PAPROVAG (APF = 25) |
Any powered, air-purifying respirator with organic vapor and acid gas cartidge(s) |
| PAPROVDMFu (APF = 25) |
Any powered, air-purifying respirator with organic vapor cartidge(s) in combination with a dust, mist, and fume filter |
| PAPRS (APF = 25) |
Any powered, air-purifying respirator with cartidge(s) providing protection against the compound of concern |
| PAPRTHiE (APF = 50) |
Any powered, air-purifying respirator with a tight-fitting facepiece and a high-efficiency particulate filter |
| PAPRTOV (APF = 50) |
Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s) |
| PAPRTOVHiE (APF = 50) |
Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s) in combination with a high-efficiency particulate filter |
| PAPRTS (APF = 50) |
Any powered, air-purifying respirator with a tight-fitting facepiece and cartridge(s) providing protection against the compound of concern |
| SA (APF = 10) |
Any supplied-air respirator |
| SA:CF (APF = 25) |
Any supplied-air respirator operated in the continuous-flow mode |
| SAF (APF = 50) |
Any supplied-air respirator with a full facepiece |
| SAF:PD,PP (APF = 2,000) |
Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode |
| SAF:PD,PP:ASCBA (APF = 10,000) |
Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive pressure mode in combination with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive-pressure mode |
| SA:PD,PP (APF = 1,000) |
Any supplied-air respirator operated in a pressure-demand or other positive pressure mode |
| SAT:CF (APF = 50) |
Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode |
| SCBAE |
Any appropriate escape-type, self-contained breathing apparatus |
| SCBAF (APF = 50) |
Any self-contained breathing apparatus with a facepiece |
| SCBAF:PD,PP (APF = 10,000) |
Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode |