Product Description Color: White Features: Features a powerful 110 CFM permanently lubricated and sealed motor that's specifically designed for continuous use applications. Adjustable mounting brackets attach to joists allowing the housing snaps into place – less tools, less work. An integrated humidity sensor automatically triggers the fan's highest CFM setting until humidity levels drop to acceptable levels, ensuring adequate ventilation and preventing harmful mildew or mold buildup. Compatible with a number of Broan multi-function and time control wall switches (sold separately). UL listed and suitable for use over bathtubs and showers when connected to a GFCI-protected branch circuit.Product Technologies: ULTRA™ Series: The Broan UTLRA series of bath and exhaust fans have taken the entire concept to a whole new level of installation-friendliness, energy efficiency and dependability. All UTLRA series units are Energy Star qualified and are designed for continuous use, ensuring that usage costs are minimized while providing adequate ventilation throughout all hours of the day. That all-day, everyday operation is complimented with some of the lowest sone ratings in the industry, ranging from whisper quiet to barely audible. Additionally, Broan's patented installation technology leverages a unique telescoping frame design that makes installation vastly less complicated. Sensaire®: Broan's humidity-sensing technology has been integrated into the design of this bath fan, making it ideal for areas that see prolonged or regular exposure to moisture. The sensor will automatically engage the fan's highest CFM setting once the user adjusted humidity level has been reached to quickly ventilate the area until the reading drops to acceptable levels. However, even when those levels are reached, the user can set the fan to remain on for an additional 5-60 minutes after humidity has stabilized