When Does A Carbon Monoxide Detector Expire? | Affton, MO Patch
How To Check Your CO Alarm's Expiration Date | Add checking your smoke and carbon monoxide alarms' expiration dates to your spring-cleaning list this year and stay safe year-round! Watch our how-to...
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Moorhead Fire on Twitter: "Is your smoke alarm older than 10 years? If so, it's time for a replacement! To find out how old your smoke alarm is and its expiration date,