Smoke alarms are an important part of any home fire safety plan, and it is important to maintain them on a regular basis. Smoke alarms should be tested monthly to ensure they are working properly, and the batteries should be replaced at least once a year. It is also important to vacuum or dust the alarms to prevent them from becoming clogged with debris.
In the event of a fire, smoke alarms can provide early warning and allow you and your family to safely evacuate the premises. Smoke alarms should be installed on every level of your home, including the basement, and in each bedroom. If you have a hearing impairment, consider installing alarms that emit a loud, high-pitched sound.
If you live in Tennessee or Northern Alabama, you should be especially vigilant about maintaining your smoke alarms. These states have a higher than average risk of wildfires, which can quickly spread and produce a lot of smoke.
Sources:
https://www.nfpa.org/News-and-Research/Fire-statistics-and-reports/Fire-statistics/US-fire-problem/wildfires
https://www.ready.gov/wildfires