Positive pressure air outlet is used to supply pressurized air during a fire, continuously feeding air into the antechamber through the outlet, maintaining a positive pressure in the antechamber.

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

Internal circuit breakers will trip, and the air outlets will automatically close to prevent 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 piping or at the end of a duct.