This Airvent 150mm low profile extractor fan is designed for use in kitchens or utility rooms. It features a built-in run-on timer that operates in conjunction with the room light switch. When the light is switched on, the fan starts, and when the light is switched off, the fan continues to run for a pre-set period of 3-25 minutes. The fan is IP44 rated and can be wall or ceiling mounted with the appropriate kit. It is Part F compliant and includes a back draught shutter. The airflow is greater than 216m3/h, and the sound level is 45dBA at 3m. Installation requires permanent live, switched live, and neutral wires (3 cores, excluding earth) at the fan position. The fan housing is made of white ABS. The dimensions are 225mm x 225mm x 15mm, with a hole diameter of 155mm. Available in a timer version and a humidistat version (60%RH -90%RH). Operates on 220-240V and consumes 20W.