| http://www.w3.org/ns/prov#value | - NFPA recommends: ?? Installing smoke alarms inside every bedroom, outside each sleeping area and on every level of the home, including the basement. ?? For the best protection, interconnecting all smoke alarms so when one sounds they all sound. ?? Using both photoelectric and ionization smoke alarms or combination ionization and photoelectric alarms, also known as dual sensor alarms.
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