why does our smoke alarm keep going off even though there is no smoke or other particulates?

Answer 1

Could heve too do with excess steam when you are showering

Answer 2

I wish I knew. Sometimes ours goes off in the middle of the night. No reason -- no cooking, no fire, no smoke, no steam. It stops after awhile, sometimes three seconds, sometimes a couple of minutes. A neighbor said the same thing has happened to her. The only thing we can think of is that we live about 25 miles from a major naval air station and the planes that fly over us might have some electronic systems that set off our alarms, but that's a real stretch.

Answer 3

I agree with ridgid above... high humidity is a common cause for that problem. Once it is damaged though it may need to be replaced - removing the humidity won't neccessarily end the problem.

Answer 4

Check the batteries

Answer 5

In some models this indicates that the battery is low. Put new batteries in to see if that will help.