Is the fire fan in the hotel corridor a blower?

The fire fan in the hotel corridor is a blower. Positive pressure fan is a kind of fan that blows air into the escape corridor. The fan can send outdoor wind pressure into the room, which is mainly used for escape stairwells. When there is a fire in the building, the fan can blow air into the escape corridor through its own operation. The so-called positive pressure fan refers to the fan that supplies air to the escape corridor. It sends outdoor wind pressure into the room. If there is a fire in a building, it will certainly produce a lot of smoke.