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.