What does the acronym PASS stand for in fire extinguisher use?

The acronym PASS stands for Pull, Aim, Squeeze, and Sweep, and it serves as a simple and effective mnemonic for using a fire extinguisher.

When you pull the pin, you disable the locking mechanism of the extinguisher, allowing it to function. Aiming the nozzle at the base of the fire is crucial because targeting the flames itself will not effectively extinguish the fire; you need to eliminate the fuel source. Squeezing the handle releases the extinguishing agent, and sweeping the nozzle from side to side helps distribute the agent over the fire, ensuring maximum coverage and effectiveness in putting it out.

Understanding this method is vital for effective fire response, as it guides users through the process of using a fire extinguisher in a high-stress situation, ultimately improving safety and effectiveness in emergencies. Other options do not represent recognized techniques for operating a fire extinguisher and therefore are not part of standard fire safety training.