Silavent 4 Axial Extractor Bathroom Wall Ceiling Fan Backdraught Shutter & Timer The Silavent SDF100TBS is a 100mm wall fitting Axial extractor fan with timer with backdraught shutter and is ideally suited for use in bathrooms and WCs. Silavent fans have a superb reputation for reliability and ease of installation. They meet 2010 Building Regulation requirements, to significantly reduce the build-up of condensation and mould This Silavent SDF100TBS is wall or ceiling mountable, and is window mountable with a separate kit. Features include: Maintenance-free fan Integral timer Backdraught Shutter Technical Details: Maximum Extract Volume: 80 (cu.mts/hr) Maximum Extract Volume: 22 (l/s) Maximum Pressure: 16 (Pa) Supply Frequency: 50 (Hz) Maximum Power: 12 (W) Maximum Sound at 3 metres: 32 dB(A) Weight: 0.6 (Kg) IP Rating: IPX4 Maximum Temperature: 40°C Wall-fit hole diameter: 110 (mm) Window-fit hole diameter: 127-140 (mm) Suitable gla