Time to Check Smoke AlarmsWorking smoke alarms are proven to save lives, cutting the risk of dying in a home fire by half. Fire prevention specialists recommend testing smoke alarms at least once a month. At this time, also dust or vacuum your smoke alarm to ensure its free of debris that could hinder its ability to detect smoke.
Some homes may now use smoke alarms with non-replaceable batteries that are designed to be effective for up to 10 years. Don't forget to still test these at least once a year, and if your alarm chirps a warning that the battery is low, remember you'll need to replace the entire smoke alarm unit.
Source: BUD Newsletter (townofcary.org)