Steamy mirrors and lingering moisture after a shower are exactly what this bathroom exhaust fan is built to clear. It delivers a steady 80 CFM of airflow, enough to cover a 129 to 161 square foot bathroom, pulling out humid air fast enough to keep mirrors clear and walls dry. Running at just 1.5 sones and under 60 dB, it is quiet enough for bathrooms next to bedrooms, so early showers will not wake the household. The housing is galvanized, powder-coated steel with an ABS panel for a clean white finish that resists moisture damage over time. It is built for a standard 4-inch duct interface and fits ceiling openings around 9.41 x 9.41 inches, with a quick connector and screws included for DIY installation. At 12.60 x 11.02 x 5.71 inches and 6.28 lbs, it is compact enough to fit typical ceiling joist spacing without major cutting. ETLus certified for safety, it also works well in laundry rooms, storage rooms, basements, and home offices where damp air needs somewhere to go.