What smells can cause a fire alarm to go off? Smoke, obviously, but what about electrical or ozone smells. Will that also cause a smoke alarm to go off?
By NAN COLEMAN from Granbury, TX
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It's not the smell that sets off a smoke detector but the smoke. All smoke detectors consist of two basic parts: a sensor to sense the smoke and a very loud electronic horn to wake people up. Smoke detectors can run off of a 9-volt battery or 120-volt house current.
As foxrun41 said, smoke detectors detect smoke. There are 2 kinds, photoelectric and ionization. One detects smaller particles from fast burning fires and the other is better with larger particles from smoldering fires.
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