It is a vital life-saving habit of changing the batteries in smoke alarms and carbon monoxide detectors when setting the clocks back for daylight saving time.
The NFPA (National Fire Protection Association reports, Smoke alarms were present in three-quarters (74%) of reported
house fires in 2012-2016. Almost three out of five home fire deaths in 2012-2016 were caused by fires in properties with no
smoke alarms (40%) or smoke alarms that failed to operate (17%).
The risk of dying in reported home structure fires is 54% lower in homes with working smoke alarms than in homes with no alarms or none that worked.