IDLH is an abbreviation for which of the following?

IDLH stands for "Immediate Danger to Life and Health." This term is used predominantly in the context of occupational safety and health, particularly in environments where hazardous materials are present. An IDLH atmosphere refers to an environment that poses an immediate threat to an individual's health or life, requiring immediate action to mitigate the danger. It is a crucial concept in fire safety and emergency response planning, as it informs first responders and safety professionals when to deploy protective measures or evacuate personnel. Recognizing an atmosphere as IDLH prompts the use of appropriate personal protective equipment and safety protocols to ensure the safety of individuals exposed to such conditions.