Vent-Axia Silhouette 100B Axial Bathroom, Kitchen and Toilet Fan (454055A)

This fan is a slimline axial extractor designed for bathrooms, toilets, kitchens and utility spaces. It uses a 100 mm (4″) duct size and features a very low-profile grille just 17 mm deep, which allows it to blend in discreetly with wall, ceiling, panel or even window mountings.. In terms of performance, it offers an extraction rate of approximately 75 m³/h (about 21 l/s) with a noise level around 30 dB(A) at 3 m and consumes around 14-16 W of power. The fan also includes downstream airflow guide vanes to improve pressure development and a built-in back-draught shutter to prevent unwanted air ingress.. From a specification and installation standpoint, it is rated IPX4 (splash-proof) making it suitable for use in bathroom zones, and is compatible with vertical or horizontal installation. It meets the requirements of UK Building Regulations such as Approved Document F. If you like, I can pull the full specification sheet (dimensions, wiring details, mounting kit) for you.