According to the NFPA, In 2005–2009, almost two-thirds of home fire deaths resulted from home fires in homes with no smoke alarms or no working smoke alarms.
No smoke alarms were present in 38% of the home fire deaths.
In 24% of the home fire deaths, smoke alarms were present but did not sound.
In half of the reported home fires in which the smoke alarms were present but did not operate, batteries were missing or disconnected.
Nuisance alarms were the leading reason for disconnected alarms. Stay Safe! Check your fire alarms!