Does your smoke detector ever go off without explanation? If nothing is burning, your shower may be the cause of those alarming sounds.
Steam from the shower can sometimes activate a smoke alarm.Â Though it looks like a cloud to us, steam is made ofÂ airborne particulates-millions of tiny particles of water floating in the air.
Smoke is very similar. What appears to be a dark cloud or haze to our eyes is actually made of millions of tiny particles-in this case, not of water, but of burnt matter.
Ionization vs. Photoelectric
There are two kinds of smoke detectors: ionization alarms and photoelectric alarms. They work in different ways, but both are designed to flip a switch when they come into contact with airborne particles. A sudden cloud of steam may trigger a photoelectric cell looking for particles as quickly as a cloud of smoke.
Better steam than smoke, but you might think about getting a new smoke detector if you don't want any more false alarms.