When sleeping, hear the alarm signal, many people are scared to open the door, trying to suddenly go out, this kind of practice is very dangerous, the correct way is to:

( 1) climb up the bedroom door, the door is hot with the back of the hand to try;

( 2) ready for a wet towel;

( 3) self rescue ropes, but don't jump off building;

( 4) the use of natural conditions as lifesaving slideway.