The correct answer is; True, this can offer an extra 20-30 minutes.
Further Explanation:
When a door is shut to flames this can help to stave the fire for a little extra time. The door cannot be opened again once it has been closed because the air can cause a back draft. If possible, leave the room from a window even if you have to jump from a high place in the home.
If possible, put a towel, clothes, or blanket at the bottom of the door to help keep the smoke out of the room. Smoke inhalation can cause death and serious injury to the lungs.
At the first sign of a fire in your home, always call 911 and if possible leave the home.
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