Circular E600 single compartment smoke control damper with a fire resistance of 60 and 120 minutes, available in diameters from 100 to 630 mm. The VRE damper is suitable for remote-mounting and available in a “C10.000” or “Cmod” version for combination with comfort ventilation or variable air volume control. Smoke evacuation shutters and dampers are suitable for use in ventilating protected lobbies, venting to shafts either naturally or mechanically. They open to evacuate smoke in emergency situations whilst maintaining fire resistant integrity in standby position.