A Pressurisation system consists of three main components: Supply Air (where air is injected into the area that is to be protected); Pressure Release (to avoid over-pressure when doors are closed), and; Air Release (air and smoke is released from the adjoining fire area). Combining these elements creates a positive pressure difference that prevents lobbies and staircases from filling up with somke.

A mechanical ventilating system capable f femoving smoke and Products of combustion from a designated fire compartment, and also supplying fresh air in such a manner as to maintain a specified smoke free zone below the smoke layer.

Containing the smoke to the zone of fire origin. Maintaining a tenable environment within exits Maintaing the smoke layer interface to a predetermined elevation.

MAIN COMPONENTS