Broan AN80L InVent Single-Speed Fan Light, 80 CFM 1.00 Sones 80 CFM reduces humidity to quickly eliminate fogged mirrors and manage moisture in bathrooms up to 75 square feet Retrofit installations can be done entirely from the room-side  no attic access required With our true seal damper technology, invent fans reduce air leakage by up to 50% compared to competitive models Ezduct connector can be installed room-side with no attic access required, fan housing connection have never been easier UL listed for use over tubs and showers with a GFCI circuit; so you can capture the steam before it spreads throughout the room by locating your fan exactly where you need it the most