HIGH QUALITY FAN: Quiet, energy efficient fan operates with 110 CFM and 1.0 Sones to help control air quality and is powerful enough for rooms (including bathroom) up to 105 sq. ft. EFFICIENT: Energy efficient operation and CleanCover grille to help your fan stay cleaner for longer EASY INSTALLATION: EzDuct connector can be installed from the room side, with no attic access required RELIABLE PERFORMANCE: With our TrueSeal Damper Technology, InVent fans reduce air leakage by up to 50% compared to competitive models, resulting in better home performance via blower door tests and reducing cold and warm air backdrafts GREAT FOR BATHROOMS: UL listed for use over tub or shower when connected to a GFCI-protected branch circuit (ceiling mount only)