Smoke alarms have become such a common feature in U.S. homes that it is easy to take them for granted. These devices have alerted countless households to developing fires. This report provides the latest information about smoke alarms in home fires reported to local fire departments in the U.S. Most estimates in this report were derived from the U.S.
Smoke alarms provide an early warning of a fire, giving people additional escape time. In 2012-2016, smoke alarms were present in three-quarters (74%) and sounded in more than half (53%) of the home fires reported to U.S. fire departments.
Almost three of every five home fire deaths resulted from fires in homes with no smoke alarms (40%) or no smoke alarms that were working (17%).
The death rate per 1,000 reported home fires was more than twice as high in homes that did not have any working smoke alarms (12.3 deaths per 1,000 fires), either because no smoke alarm was present or an alarm was present but did not operate), as it was in homes with working smoke alarms (5.7 per 1,000 fires).
In fires in which the smoke alarms were present but did not operate, more than two of every five (43%) of the smoke alarms had missing or disconnected batteries.
Dead batteries caused one-quarter (25%) of the smoke alarm failures.
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