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Safe at Home

Danger zones: Common threats to your home

Smoke detectors
Smoke detectors
The hazard: Dead or missing batteries are the leading causes of malfunction.

How to avoid it: Change the batteries at least once a year. Replace models that are more than 10 years old.


By the editors of Money magazine and This Old House @ThisOldHouse @Money - Last updated May 24 2012: 11:34 AM ET
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