The Broan CleanCover Bath Ventilation Fan (Model CST80KW) is an 80 CFM ultra-quiet bathroom exhaust fan designed to efficiently remove moisture and improve air quality. Operating at just 0.7 sones, this whisper-quiet fan runs nearly silently while powerfully ventilating full-sized bathrooms to prevent mold and mildew buildup. ENERGY STAR certified for energy efficiency, the fan features a CleanCover grille with a sleek, low-profile design that stays cleaner longer, with fewer vent slots than traditional grilles to collect dust and debris.

The included Humidity Sensing Wall Control detects rapid rises in humidity and automatically activates the fan, responding up to 4x faster than competing humidity sensors to proactively fight moisture damage and maintain healthy indoor air quality. TrueSeal damper technology reduces air leakage by up to 50%, improving overall ventilation efficiency throughout its service life.

Installation is simplified with innovative room-side mounting that eliminates the need for attic access, making this fan ideal for retrofit, remodel, or replacement projects. FoldAway mounting ears accommodate both new construction and retrofit applications, while the EZDuct connector creates an airtight seal to ductwork from below the ceiling. Compatible with 4-inch duct and 2x6 ceiling construction. UL listed for use in insulated ceilings (Type I.C.) and HVI-2100 certified; also UL listed for installation over bathtubs and showers when connected to a GFCI-protected branch circuit. Dimensions: 12.25" L x 12.25" W x 5.75" H; 9 lbs.