• Model designed for installation recessed into wall. • Reversibility function (intake or extraction). • Automatic shutter: prevents the entry of cold air and bad smells when the appliance is switched off. • Material: UV resistant ABS plastic (prevents ageing caused by exposure to sunlight) • Nominal diameter 230 mm. • Motor protected against thermal overload, with shaft turning in self-lubricating bushings, coupled to screw type thermoplastic impeller with wing profile blades.