The Envirovent Infinity 230V Filterless Extractor Fan BDS & intellitrac INF-DL-230 is a white circular extractor fan designed for bathrooms and kitchens. It is operated by a pullcord switch and has a voltage of 230V, making it an efficient and effective ventilation system. With a diameter of 4 inches, this unit is manufactured in the United Kingdom by the trusted brand Envirovent. Its filterless design ensures low maintenance and clean air circulation, making it a convenient and reliable option for improving air quality in your home.