What must be done when servicing a fire extinguisher?

When servicing a fire extinguisher, it is essential to ensure that the unit is replaced with an equal extinguisher to maintain fire safety standards. This practice is crucial because fire extinguishers are critical safety devices that must be readily available in case of a fire emergency. If an extinguisher is removed for servicing, having an equal extinguisher in its place ensures that the total firefighting capacity and readiness of the location are not compromised.

Keeping an equal extinguisher ensures that the specific type of extinguisher required for the potential fire hazards present (such as Class A, B, C, D, or K fires) remains accessible. This adherence to safety protocols ensures compliance with local fire codes and regulations, which stipulate that working fire extinguishers must be available at all times in commercial and residential settings.

In contrast, options that involve removal without immediate replacement or doing nothing do not align with safety practices and could create hazardous situations where fire protection is unavailable when needed.