Fred Durso

Smoke alarm response in residential settings a hot topic at SUPDET 2013

Blog Post created by Fred Durso Employee on Feb 26, 2013

Thomas Fabian
Thomas Fabian of Underwriters Laboratories


At this week's Suppression, Detection and Signaling Research and Applications Conference, Thomas Fabian with Underwriters Laboratories highlighted new data from recent fire tests in two-story residential structures. The majority of the research focused on the performance of ionization and photoelectric smoke detection technologies. Some of Mr. Fabian's findings include:

  • Ionization alarms activated earlier than photoelectric alarms in flaming fires
  • Photoelectric alarms activated earlier than ionization alarms in smoldering fires
  • Closing bedroom doors retarded alarm activation by 75-150 seconds for fires in adjacent rooms and less than 600 seconds for fires in remote areas.

Learn more about ionization and photoelectric alarms, as well as NFPA's smoke alarm safety tips.

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