What can I do to make sure my smoke detector is working?
Like most electronic devices, smoke detectors require occasional maintenance. Test the battery each month by pressing the “test” button until you hear a beep. Also be sure to regularly dust the cover. Air needs to easily flow through the detector for it to work.
If your smoke detector is more than 10 years old, or you suspect it’s not working, there are other ways you can test it. Buy smoke detector aerosol spray at a hardware store and simply follow the directions on the can.