Smoke and toxic gases rise to the ceiling first. In a fire, the breathable air is closest to the floor. If you encounter smoke while escaping, get down on your hands and knees and crawl to the nearest exit. Just a few breaths of toxic smoke can cause disorientation and loss of consciousness.

Once you are out, stay out. No possession is worth your life. People who re-enter a burning building account for a significant number of fire fatalities each year. Call 911, go to your meeting spot, and let the firefighters do their job — they have the training and equipment to enter safely.