When using a fire extinguisher, what is a key safety precaution to remember?

The key safety precaution when using a fire extinguisher is to always keep your back to the exit. This is crucial because it ensures that you have a clear and safe escape route while you are focused on combating the fire. In the heat of the moment, fires can spread rapidly and change in intensity, so being aware of your exit allows you to respond quickly if the situation worsens. This precaution helps maintain personal safety, enabling you to retreat if needed without becoming trapped.

The other options present less effective approaches. For instance, standing upright to combat fires may not be practical in all scenarios, as individuals might need to adjust their posture based on the fire's location. Using the elevator is discouraged during a fire because elevators may malfunction or become hazardous in smoke or fire situations. Finally, narrowly approaching the fire could put someone at risk of being burned or overwhelmed by smoke; it’s better to maintain a safe distance while targeting the base of the fire with the extinguisher.