Chemical Respiratory Guide
Chemical Agent
CAS Number
Chemical Respiratory ChartDownload a printable version
| Chemical Name | CAS Number | Filter Type | Suggested Product | TLV(t) PEL(o) | IDLH | Comments |
|---|---|---|---|---|---|---|
| Chlorine | 7782-50-5 | AG | 7200/8200 7300/8300 7600/8600 | 0.5 ppm (t); 1 ppm (c)(s)-(o)(t) | 10 ppm | Chemical goggles required when using a half mask, t-A43 |
| Chlorine Dioxide | 10049-04-4 | AG | 7200/8200 7600/8600 | 0.1 ppm (t)(o); 0.3 ppm (s)-(t) | 5 ppm | Chemical goggles required when using a half mask |
| Chloroacetophenone | 532-27-4 | FF-OV/N95 | 9001/2/3+ 7100+8910 | 0.05 ppm (o)(t) | 2.3 ppm | t-A4 |
| Chlorobenzene | 108-90-7 | OV | 7100 8100 | 75 ppm (o); 10 ppm (t) | 1,000 ppm | Substance for which ACGIH BEI exists; t-A3 |
| Chlorodiphenyl (42% chlorine) | 53469-21-9 | FF-OV/N95 | 9001/2/3+ 7100+8910 | 1 ppm (o)(t) -skin- | 5 mg/m3 | |
| Chlorodiphenyl (54% chlorine) | 11097-69-1 | FF-OV/N95 | 9001/2/3+ 7100+8910 | 0.5 ppm (o)(t) | 5 mg/m3 | t-A3 |
| Chloropicrin | 76-06-2 | FF-OV | 9001/2/3+ 7100 | 0.1 ppm (o)(t) | 2 ppm | t-A4 |
| Chromium (II) Compounds - (as Cr) | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 0.5mg/m3 (o) | 250mg/m3 | For specific information, refer to: NIOSH Pocket Guide to Chemical Hazards | |
| Chromium (III) Compounds - (as Cr) | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 0.5mg/m3 (o)(t) | 25mg/m3 | For specific information, refer to NIOSH Pocket Guide to Chemical Hazards; t-A4 | |
| Chromium (VI) Compounds - Dusts; Water Soluble (as Cr) Includes Chromic Acid and (see also Lead and Zinc Chromate) | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 0.05mg/m3 (t); 0.005mg/m3 (o); as Cr(VI) 0.1mg CrO3/m3 (c)-(o) | 15mg/m3 | t-A1; Also see specific compounds. Substance for which an ACGIH BEI exists. For specific information, refer to OSHA 29CFR1910.1026 |
