A centrifugal fan that is ideal for use in bathrooms, shower rooms, toilets and utility rooms where longer duct runs are required. It has an integral humidistat and condensation control keeps moisture and mould at bay. The CF20 fan has a gloss white two-part casing for surface or recess mounting. This fan also features a pullcord manual override and a room size selector that ensures that the fan is operating at the optimum speed for a particular room for maximum efficiency.