The Manrose 120mm Extractor Fan is designed for larger bathrooms, toilets, cloakrooms and medium sized rooms, the 120mm (5\") series of fans are 56% more powerful than their 100mm (4\") counterparts, yet only 10% larger in surface area. These fans are double insulated and do not require an earth. All wiring must comply with current IEE regulations. A double pole isolating switch, having a contact separation of at least 3mm in all poles, must be used with a 3 amp fuse fitted. The fan must not be accessible to a person using either the shower or bath and mounted a minimum of 1.8 metres from the floor. WF120 Series is designed for window mounting through a standard 140mm - 150mm ø hole. Designed for wall, ceiling or window mounting, the efficient range of axial flow extractor fans are available in eleven options Quiet in operation, easy to install and possess the latest design technology The extract rate is 130m3/hr, 36 litres per second Power is provided by a single phase induction motor with pre-oiled bearings fitted for a long, maintenance free life Manufactured using high gloss ABS thermoplastics for strength, durability, aesthetics and easy cleaning The 120mm (5\") series complies with the Building Regulations on Ventilation (F1) Mounting: Wall Noise: 41.0 dB(A) Hole Size: 5\" Type of Extractor: Axial Number of Speeds: 1 Extraction Rate: 36 litres per second 120mm (5\") Maximum pressure: 35 p.a. Fan speed: 2000 r.p.m. Maximum operating temperature: 40ºC