What action should be performed according to manufacturer's recommendations?

Regularly testing the alarms is essential to ensure that smoke detectors are functioning properly and can effectively alert occupants in case of a fire. Following the manufacturer's recommendations for testing is crucial because it verifies that the smoke detectors respond correctly to smoke or heat and that batteries are operational. Testing typically involves using the test button on the unit and checking that the alarm sounds, indicating that the device is working as intended.

Cleaning the unit once a month may not be necessary as the manufacturer's guidelines may suggest different intervals based on specific environmental conditions. Replacing the unit every year is generally not required; many smoke detectors are designed to last much longer, often up to 10 years, depending on the model. Monitoring the environment for smoke is a good safety practice, but it does not specifically pertain to the routine checks or maintenance recommended by the manufacturer.