What is IDLH ?VideoLast updated Friday, July 10, 2020
The term immediately dangerous to life or health (IDLH) is defined by the U.S. National Institute for Occupational Safety and Health (NIOSH) as exposure to airborne contaminants that is "likely to cause death or immediate or delayed permanent adverse health effects or prevent escape from such an environment." First responders need to be aware of toxic inhalation hazards (TIH) and poison inhalation hazards (PIH).
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