ABBREVIATIONS
APF | assigned protection factor |
CFR | Code of Federal Regulations |
DFM | dust, fume, and mist |
DHHS | U.S. Department of Health and Human Services |
DM | dust and mist |
DOP | dioctyl phthalate |
HEPA filter | high-efficiency particulate air filter |
HR | hazard ratio |
IDLH | immediately dangerous to life and health |
MMAD | mass median aerodynamic diameter |
MSHA | Mine Safety and Health Administration |
NaCl | sodium chloride |
NIOSH | National Institute for Occupational Safety and Health |
OSHA | Occupational Safety and Health Administration |
PAPR | powered air-purifying respirator |
PEL | permissible exposure limit |
REL | recommended exposure limit |
SCBA | self-contained breathing apparatus |
TB | tuberculosis |
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