• Material: UV resistant plastic (prevents ageing caused by exposure to sunlight). • Nominal diameter: 100 mm • Motor with thermal overload protection and shaft turning in ball bearings. • Maximum air flow 70 m3/h • Equipped with electronic timer designed to shut off the motor automatically after a set interval, selectable during installation in the range 3’-20’ (default setting 3’). • Non-return damper fitted to outlet port. • Vortice speed controller.