In general, there are two types of smoke detectors used in homes: photoelectric and ionization. Each one senses smoke differently.
The type of smoke produced by a fire depends on the type of fire. Flaming fires produce a different type of smoke than smoldering fires.
Both types of alarms will detect the smoke from either a smoldering fire or a flaming fire.
Ionization smoke alarms tend to respond faster to the smoke produced by flaming fires than photoelectric smoke alarms.
Photoelectric smoke alarms tend to respond faster to the smoke produced by smoldering fires than ionization smoke alarms.
Having working smoke detectors in the home is the most important, whether they be photoelectric, ionization or dual sensor alarms which contain both sensors.
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