WhisperThin DC Exhaust Fan, designed for medium to large rooms like bathrooms and laundry areas. Features a Pick-A-Flow Speed Selector for customizable airflow of 80 or 100 CFM, ensuring tailored ventilation. Powered by advanced DC-ECM Motor Technology, it operated quietly at less than 0.5 sones at 80 CFM and 1.1 sones at 100 CFM, effectively eliminating humidity, mold, and pollutants. Installation is easy with included mounting hardware for 2 x 4 stud construction. Complies with UL safety standards and Energy Star certification. With a 6-year warranty on the motor and 3 years on parts, the WhisperThin DC fan provides reliable performance for years, ensuring superior indoor air quality for your family.