What does 'S' stand for in the PASS acronym?

In the PASS acronym, which is used for effective fire extinguisher usage, 'S' stands for "Sweep the spray side to side." This step is crucial because it ensures that the extinguishing agent is applied evenly over the flames and that the fire is effectively smothered. Sweeping the nozzle from side to side helps to cover the entire area of the fire and prevents re-ignition by ensuring that the flames do not simply move from one spot to another. The sweeping motion also enhances the reach of the spray, allowing for a broader area to be addressed, which can be particularly important in extinguishing larger or spreading fires.

While other options may relate to different aspects of fire safety or equipment use, they do not accurately capture the meaning of 'S' in the PASS acronym specifically related to fire extinguisher operation. Understanding the correct sequence and actions within this acronym is essential for responding effectively to fire emergencies.