If only more people slept with their bedroom doors closed…

Fires spread more quickly the more oxygen they have, but you can slow the spread of a house fire, as well as reduce toxic smoke levels if you keep your bedroom doors closed while you’re sleeping. “Closing your door can dramatically increase your chances of survival,” according to Kerber. It’s so important, his organization (the ULFSRI) has launched Close YourDoor, a mission aimed at educating the public about how “closing before dozing” can save lives by slowing the spread of fire and smoke.

Source: https://www.rd.com/advice/work-career/things-firefighters-wish-you-knew/