- 96% of U.S. households have at least one smoke alarm.
- Smoke alarms were present in 73% of all reported home fires, but were functioning in only 52% of all reported home fires.
- 37% of home fire deaths resulted from fires in homes with no smoke alarms.
- 23% of home fire deaths resulted from fires in homes in which smoke alarms were present but did not operate.
NFPA offers several tips for testing and maintaining smoke alarms:
- Install smoke alarms in every sleeping room, outside each sleeping area, and on every level of the home, including the basement.
- For the best protection, interconnect all smoke alarms.
- Replace smoke alarms after 10 years.
- Test smoke alarms every month.
- In smoke alarms with long-life batteries, if the alarm chirps, replace the entire device. Batteries of other types should be replaced every year.
- Ionization alarms are more responsive to flaming fires, while photoelectric alarms are more responsive to smoldering fires. A combination of both types is recommended for the best protection.