Knightsbridge 100mm/4 inch Extractor Fan with Overrun Timer Knightsbridge 100mm/4 inch Extractor Fan with Overrun Timer Suitable for kitchens, bathrooms and toilets. Designed to be fitted into walls and ceilings. Slim profile compact, attractively styled, easy to wipe clean and duct over short lengths. Ideal solution for removing damp moist air, odours and airborne pollutants from kitchens, toilets and bathrooms. 100mm/4 inch size Profile depth of 22mm Built in over-run timer 2-30mins Extraction rate of 74 cubic metres per hour (20.55 Ltr/second) Low noise level of just 35dBA at 3m Adjustable over run timer 2 – 30 minutes Quiet and efficient Double insulated, does not require an earth Compliant with latest Building Regulations (Part F) & (Part L) Certified to BS EN 60335-1:2002, BS EN 60335-2-80/A2:2008 SFP: 0.44
