|Courtesy of NFPA|
Even if your 10 year old, or older, smoke alarm still sounds when you push the test button, it should be replaced.
To learn more about smoke alarms, please go here: Smoke Alarms
To learn how to properly dispose of a smoke alarm, please go here: How to recycle/dispose of smoke alarms
For those with battery powered alarms, please go here to learn about Maryland's Updated Smoke Alarm Law.