Positive pressure air supply outlets are used to increase air pressure and supply air during a fire, continuously feeding air into the antechamber through these outlets, maintaining a positive pressure in the antechamber.

Pressure is applied to ensure that smoke does not spread in this area, providing space for people to escape. When the temperature exceeds 280°C, there is no possibility of escape.

Internal circuit breakers will trip, causing the air outlets to automatically close, preventing the spread of fire. Typically installed on the walls of stairwell vestibules and smoke shafts, they can also

Installed on the side of smoke control system ducts or at the end of air ducts.