Whenever you move to a new area, you should locate the fire alarm pull stations and the two exits nearest your room.

In the paper, the qualification of the fire temperature and smoke not to pollute the non-fire tunnel is brought forward, the engineering measures to avoid the pollution are also suggested.

However, it is not only harmful to escape, but also beneficial for smoke to spread quickly to other floors if the smoke moves into the vertical escape evacuation routes while it is on fire.