A kind of high-rise hotel. When a fire breaks out on one floor, is the air outlet of the whole floor open or adjacent to it?

The air supply outlet of the whole floor should be opened, because when the air supply outlet is opened on the fire floor, a large amount of gas flows in, and the air pressure on this floor increases, thus pushing out the smoke generated by the fire, so that the gas on this floor can breathe, and people will not die because of inhaling too much toxic gas.

When there is a fire on the top floor, the escape probability of running downstairs is 30%, and that of going upstairs is 2%. The general principle of survival is to go down. Even if you run up, you will run down when you get to the passage connected to other buildings. The principle of running is to escape with fire-proof tools, such as spraying fire on people to prevent skin injury, fire blankets, smoke masks and so on. The maximum limit of the fire escape is 12 floor, so don't cross this floor if you wait for the escape. Generally, the height limit of the fire brigade ladder is 32m, and the height of residential buildings in China is 2.8m to 3.0m Therefore, the Code for Fire Protection Design of Buildings requires that there should be fire elevators and stretcher ladders exceeding 33m. Wet towels have no effect on anyone. Young people have a little effect, but old people and children can't breathe at all, and wet towels can't stand high temperature and toxic gases. Firefighters now wear smoke masks directly on your head. Covered people should not rush to help the old, young, women and children evacuate, but should have a sense of morality.