Axial Axial type fans cause gas to flow through in an axial direction which is parallel to the shaft where the blades rotate, making the flow axial at exit and entry. Axial fans are designed to create a pressure difference and force which produces a flow through the fan. 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. 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 .
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