Note: | Examples of substances that may be respiratory hazards when airborne include: |
1. Chemicals listed in Table 3. | |
2. Any substance: | |
a. Listed in the latest edition of the NIOSH Registry of Toxic Effects of Chemical Substances; | |
b. For which positive evidence of an acute or chronic health hazard exists through tests conducted by, or known to, the employer; | |
c. That may pose a hazard to human health as stated on a material safety data sheet kept by, or known to, the employer. | |
3. Atmospheres considered oxygen deficient. | |
4. Biological agents such as harmful bacteria, viruses or fungi. | |
Examples include airborne TB aerosols and anthrax. | |
5. Pesticides with a label requirement for respirator use. | |
6. Chemicals used as crowd control agents such as pepper spray. | |
7. Chemicals present at clandestine drug labs. | |
These substances can be airborne as dusts, fibers, fogs, fumes, mists, gases, smoke, sprays, vapors, or aerosols. |
References: | 1. Substances in Table 3 that are marked with an X in the "skin" column may require personal protective equipment (PPE). See WAC 296-307-100, Personal protective equipment, for additional information and requirements. |
2. If any of the following hazards are present in the workplace, the employer will need both this part and any of the following specific rules that apply: |
Hazard | |
a. | Acrylonitrile; |
b. | Arsenic (inorganic); |
c. | Asbestos; |
d. | Benzene; |
e. | Butadiene; |
f. | Cadmium; |
g. | Carcinogens; |
h. | Coke ovens; |
i. | Cotton dust; |
j. | 1,2-Dibromo-3-chloropropane; |
k. | Ethylene oxide; |
l. | Formaldehyde; |
m. | Lead; |
n. | Methylene chloride; |
o. | Methylenedianiline; |
p. | Thiram; |
q. | Vinyl chloride. |