Fire Chief: Most Smoke Alarms Are Useless, Endanger Users

Fire alarms make you feel safe, but an Albany, Calif. fire chief says it's a false sense of security. Speaking to the San Francisco Chronicle, the chief says most people equip their homes with cheaper ionization alarms, which detect smoke via an electric current and can lead to false alarms (such as reacting to overcooked food) while missing genuine dangers until it's too late. The chief says people should opt for slightly more expensive photoelectric alarms, which use more accurate light beams to alert fire victims.

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