The Vent-Axia 473852 Lo-Carbon Revive dMEV Extractor Fan is a 100mm 4-inch unit designed for bathrooms and kitchens. With a square vent style and white finish, this electric-powered fan features a digital display and a switch control style. Made of ABS material, this centrifugal extractor fan by Vent-Axia offers continuous ventilation with a single speed setting. Wall-mounted and easy to install, this energy-efficient fan helps improve air quality and circulation in your home.