What is an important maintenance activity for smoke detectors?

Regularly testing the alarm is a crucial maintenance activity for smoke detectors as it ensures that the device is functioning properly and can effectively alert occupants in the event of smoke or fire. Testing allows users to verify that the alarm sounds when triggered, confirming that the battery is working, and that the overall system is operational. This proactive approach helps identify any potential issues early, reducing the risk of detector failure when it is needed most.

In terms of other options, repainting the device could interfere with its functionality and is not recommended. Sealing the device to protect from moisture may hinder proper airflow and potentially trap contaminants that could negatively affect detection. Changing the location of the smoke detector is not a standard practice as smoke detectors are typically installed in specific locations for optimal performance. Regular testing is the essential practice that directly impacts reliability and safety.