Designed for wall, ceiling or window mounting, this comprehensive range offers a wide selection of models for use in bathrooms and toilets. BVF100T has an adjustable run on timer for use where there is a permanent and switched live available at the fan. Quiet and efficient, the 100mm (4") series has an impressive extract rate of 85m3/hr, 23 liters per second. The units are all manufactured using high ABS thermoplastics for strength and durability, aesthetics and easy cleaning. Power is provided by a single phase induction motor with pre-oiled bearings for a long, maintenance- free life. Designed to comply with the 2006 Building Regulations on Ventilation (F1).