Smoke alarm maintenance guide
Once a month
Test your smoke alarm batteries every month by pressing and holding the test button for at least five seconds until you hear the beeps.
Every 6 months
Vacuum dust off your smoke alarms every six months.
Keeping your smoke alarm free of particles to help reduce false alarms and ensure smoke can easily reach the internal sensor.
Replace lead or alkaline batteries every 12 months.
Every 10 years
Replace all smoke alarms with new 10-year lithium powered smoke alarms every 10 years, or earlier if specified by the manufacturer.