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Research conducted by UL reveals that sleeping with your
bedroom door closed can buy you “lifesaving seconds” during a fire. NFPA reports that the research shows how doors can keeps smoke out of a room longer
and change the flow of heat and toxic gases. Director of UL’s FirefighterSafety Research Institute Steve Kerber says that closed doors, as well as smoke
alarms, are the best possible things to help you in the event of a fire.
A video illustration conducted by Kerber’s team shows just
how fast smoke can reach a room that has an open door, while a room with a
closed door stays clear for longer. The video shows how after a minute and a
half after a fire starts in a home downstairs, smoke is entering an upstairs
bedroom that has its door open. After 3 minutes, the open door room is filled
with thick smoke. But, the room with its door shut stays clear for longer; after
5 minutes, there is still some visibility in the room with the closed door.
