Simply Silent? CV Contour bathroom fans are 4 inch / 100mm Constant Volume extractor fans for the effective control of humidity, odours and mould growth in bathrooms, shower rooms, cloak rooms, toilets and kitchens.

Simply Silent? fans use Ghost? air movement technology to deliver near-silent running. This is achieved by employing silent running ball bearing motors and precision engineered components to eliminate all forms of mechanical noise plus advanced airflow design to help eliminate turbulent flow. In addition, these fans are stylish and simple to install.

Constant Volume technology built in to these particular fans adjusts the speed of the fan automatically, ensuring the correct airflow rate. Additionally an integral hour-run meter shows exactly how long the fan has been running.

the Constasnt Volume fan range consists of the following configurations:
829-8867 - Square DC constant volume CV4S 92968AW
829-8864 - Square DC constant volume with external transformer LVCV4S 92970AW
829-8860 - Round DC constant volume CV4R 92969AW
829-8873 - Round DC constant volume with external transformer LVCV4R 92971AW
Simply Silent? fan technology
Low voltage DC operation
Standard 4 inch / 100mm design
COntour CV (Constant Volume) operation
Choice of either round or square fascia