Do you know how to properly test your smoke alarm? Most people will say to press the little red button. If the alarm goes off it's working properly. The fact is that nothing could be further from the truth. Over time the sensing chamber in the alarm may become obstructed by dust and dirt making it malfunction during a fire.
The proper way to test your alarm is by spraying a small amount of a smoke detector test aerosol directly at the alarm. The alarm should sound within 5-10 seconds. If it doesn't clean the unit, change the battery and repeat the test. If it still fails to sound off again the unit is defective and needs to be replaced.
There are many fire related deaths every year. A simple test can save you and you family. Don't wait until it's too late. Test you smoke alarm properly at least once a year and as Amanda pointed out, don't forget to change the battery as well.
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