What does PASS stand for in extinguisher use?

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The main idea is the PASS method, a quick sequence to use a portable fire extinguisher safely and effectively. The steps are: pull the pin to break the tamper seal and allow discharge; aim at the base of the fire to target the fuel source; squeeze the lever to release the extinguishing agent; and sweep the nozzle from side to side to blanket the fire and prevent re-ignition. Pulling the pin is essential to enable use, aiming at the base ensures you suppress the fire at its source rather than just the flames, squeezing releases the agent, and sweeping provides broad coverage. The other options mix actions that aren’t correct for proper extinguisher operation, such as pushing instead of pulling or using terms that don’t describe the discharge and coverage steps.