How often should smoke detectors be tested?

Smoke detectors play a crucial role in ensuring safety in residential settings by providing early warning of smoke or fire, which can save lives. Testing them every month is recommended by both the National Fire Protection Association (NFPA) and other safety organizations. This regular testing helps ensure that the devices are functioning properly and that the batteries are charged, allowing them to operate effectively in case of an emergency.

Monthly testing typically involves pressing the test button on the smoke detector to check its functionality. It's also a good practice to replace the batteries at least once a year, or sooner if the detector emits a low-battery warning. Additionally, while other time intervals listed in the options may be relevant for certain maintenance tasks, none surpass the importance of the regular monthly checks to confirm that the smoke detectors are operational at all times.

Regular testing and maintenance of smoke detectors can greatly reduce the risk of fire-related incidents, making it a critical practice in residential safety.