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 |
|---|---|---|---|---|---|---|
| Ammonia | 7664-41-7 | AM | 7400/8400 7600/8600 | 35 ppm (s)-(t); 25 ppm (t) 50 ppm (o) | 300 ppm | Must wear chemical goggles when using half mask respirator |
| Hydrogen Fluoride (as F) | 7664-39-3 | FF-AG | 9001/2/3+ 7200/7300/ 7600 | 0.5 ppm (t)* 2 ppm (c)-(t)* 3 ppm (o)*+ *as F, +15 min -skin- | 30 ppm | Substance for which ACGIH BEI exists |
| Phosphoric Acid | 7664-38-2 | FF-N95 | 9001/2/3+ 7940/7990 | 1 mg/m3 (o)(t) 3 mg/m3 (s)-(t) | 1000 mg/m3 | |
| Hydrogen Chloride | 7647-01-0 | AG | 7200 8200 | 2 ppm (c)-(t) 5 ppm (c)-(o) | 50 ppm | ACGIH NIC to 2 ppm (C) & t-A4 |
| Zinc Chloride, Fume | 7646-85-7 | N | 2310/2315N99 2400/2800N95 | 1 mg/m3 (o)(t); 2 mg/m3 (s)-(t) | 50 mg/m3 | |
| Sodium Bisulfite | 7631-90-5 | AG/N | 7200+8910 8100+8910 | 5 mg/m3 (t) | t-A4 | |
| Camphor | 76-22-2 | FF-OV/N95 | 9001/2/3+ 7100+8910 | 2 ppm (o)(t) 3 ppm (s)-(t) | 200 mg/m3 | |
| Chloropicrin | 76-06-2 | FF-OV | 9001/2/3+ 7100 | 0.1 ppm (o)(t) | 2 ppm | t-A4 |
| Trichloroacetic Acid | 76-03-9 | OV/AG | 7300 8300 | 1 ppm (t) | t-A3 | |
| Lithium Hydride | 7580-67-8 | N | EZ22/EZ23N95 2200/2300N95 2600/2700N95 | 0.025 mg/m3 (o)(t) | 0.5 mg/m3 |
