The acronym PASS stands for the four key steps to operate a fire extinguisher effectively: P - Pull the safety pin to unlock the extinguisher for use.
A - Aim the nozzle or hose at the base of the fire, targeting the fuel source.
S - Squeeze the handle or lever slowly to release the extinguishing agent.
S - Sweep the spray from side to side across the base of the fire until it is completely out. Following these steps helps ensure the fire extinguisher is used safely and efficiently to put out a fire.