Envirovent Silent Design 100mm Silver Extractor FanUltra Quiet 4" Bathroom Wall/ceiling Ventilation FanSildes100Ss from B&Q

Envirovent

The Envirovent Silent Design 100mm Extractor Fan (SILDES100SS) combines ultra-quiet performance with modern styling to deliver an exceptional ventilation solution for bathrooms, WCs and en-suites. Engineered with advanced acoustic technology, this compact 4"" axial fan uses motors mounted on silent elastic blocks to dramatically reduce vibration and noise. Operating at just 26dB(A), it offers one of the quietest extraction levels in its class — ideal for creating a peaceful bathroom environment without compromising on airflow.Developed through extensive research and innovation, the Silent Design range features Envirovent’s patented acoustic system that ensures maximum airflow with minimal noise. With a high extraction rate of 85m³/h, it effectively removes moisture, steam and odours to help prevent condensation, mould growth and long-term damp damage. Its low energy consumption of only 8W makes it an economical choice for everyday use.Finished in a sleek silver fascia, the fan blends seamlessly with contemporary bathrooms and stylish interiors. Installation is flexible, suitable for both wall and ceiling mounting, and it includes essential performance-enhancing features such as a built-in backdraught shutter and airflow guide vanes for improved pressure development. The unit is fitted with sealed-for-life ball bearings for long-lasting reliability and includes Standard Thermal Overload Protection for added safety.Rated IP45, the fan is suitable for installation in bathroom Zone 1 when wired to a SELV circuit (SELV version IP57). This ensures safe operation in wet environments while maintaining consistent ventilation performance. With its combination of silent running, premium materials and high efficiency, the Silent Design 100mm fan is a perfect choice for residential bathrooms requiring discreet, dependable ventilation with a modern aesthetic.