• Material: UV resistant plastic (prevents ageing caused by exposure to sunlight). • Nominal diameter 100 mm • 3 speed motor with thermal overload protection and shaft turning in ball bearings. • Double motor-fan enclosure, antivibration mounts and non-return damper combining to ensure extremely quiet operation. • Supplied with front grille mounting springs, suitable for any kind of false ceiling (65 mm max). • Removable and washable metal mesh filter. • Outlet port equipped with non-return damper. • Vortice speed controller.