Humidistat & timer operated These extractor fans are certainly the cleverest with the ability to operate using a timer or based on the humidity levels in the room. It is operated when humidity levels within the room get too high or when the light switch is used, with a timer continuing to run the extractor fan for a predetermined amount of time. 31 ltr/s extraction rate Building regulations stipulate that extractor fans need to be able to extract at least 15 litres of air per second. It’s needed to ensure a minimal build-up of moisture in the room, reducing mould and grime in damp areas. This fan will extract a crazy 31 litres per second! That’s more than 2x what’s recommended! IPX5 Rating This product have a rating of IPX5, meaning it is protected from water jets that are projected by a nozzle (6.3mm) from any angle. Centrifugal extractor fan Centrifugal fans are specifically designed for installation in rooms that aren’t close to an external wall. They’re designed to powerfully move moisture filled air long distances along ducting to the outside world. Just like axial fans they can be purchased with features such as timers which allow the fans to overrun after they’ve been turned off for maximum effectiveness.   Zone 1 Rated IP rating stands for 'Ingress Protection rating' and this helps us determine what bathroom electricals can go in particular bathroom zones. An IP (Ingress Protection) number or code is used here in the UK to specify the environmental protection of enclosures around electronic equipment. These ratings are determined by specific tests. These extractor fans can be fitted within Zone 1 as shown below. Recessed wall & ceiling installation These extractor fans can be installed through a wall or recessed giving you that extra bit of flexibility. They can also be installed as portrait or landscape. Pull cord boost These extractor fans will run continuously to keep moisture in your bathroom to an absolute minimum. Then if you have a shower or run a hot bath the pull cord can be used to activate a boost function which in turn ups the extraction rate. Toilet & bathroom suitable With high extraction rates this extractor fan is suitable for use in both a cloakroom toilet and a full family bathroom.  3 Year Guarantee When buying anything for your home you need to know that its going to stand the test of time. This is why this product comes with a fantastic 3 year guarantee against any manufacturing defects should the worst happen and the product is not up to standard.