Broan® AE110 Flex Series 110 CFM ceiling exhaust bath fan, offers easy, room side installation, with .No Attic Access Required.. Ceiling mounted ventilation fan features foldable mounting ears and EzDuct™ connector for easy installation. New duct damper technology provides a tighter seal, resulting in reduced warm and cold air backdrafts. This energy efficient fan operates at 110 CFM and a quiet 1.0 sone. Includes: Non-metallic damper/duct connector - Features: 110 CFM, Effective ventilation to remove moisture and reduce the risk of mold or mildew in most full baths; 1.0 Sones for Ultra quiet performance, you might not notice it's on; TrueSeal™ Damper technology reduces air leakage up to 50%; EzDuct™ connector can be installed from the room side, with no attic access required; ENERGY STAR® Certified for energy efficient operation; UL listed for use over tub or shower when connected to a GFCI-protected branch circuit (ceiling mount only); Powerful enough for rooms up to 100 sq. ft.; Brighter white grilles blend in to match most common ceiling paint; Corrosion resistant galvanized steel housing stands up to moisture; Permanently lubricated AC motor engineered for continuous operation; Optional galvanized steel duct expander for use with 6\" ducting and optional installation brackets are sold separately; Quiet exhaust fan to help reduce moisture, odors, and mildew; Powerful enough for rooms (including bathroom) up to 105 sq. ft.; Easy to install new / replace existing product from the roomside