What does the acronym PASS stand for in relation to fire extinguishers?

The acronym PASS is an essential mnemonic used for the proper operation of fire extinguishers, ensuring that individuals can respond effectively to small fires. Each component of the acronym corresponds to a specific action to take when using a fire extinguisher.

Pull is the first step, which refers to removing the safety pin from the handle of the extinguisher. This action allows you to use the extinguisher effectively by enabling the trigger mechanism.

Aim directs you to point the nozzle at the base of the fire. This is crucial because targeting the base of the fire helps to extinguish the flames at their source, rather than just spraying at the flames themselves.

Squeeze means to press down on the handle to release the extinguishing agent. This step is necessary to activate the extinguisher and allow it to discharge the contents.

Sweep instructs you to move the nozzle from side to side. This action allows for an even dispersal of the extinguishing agent over the fire, helping to ensure that it is effectively put out and that no reignition occurs.

Understanding and remembering the steps encapsulated in PASS can greatly increase the effectiveness of a fire response, which is why this mnemonic is taught in fire safety training.