WhisperRemodel DC Ventilation Fan, perfect for medium to large rooms like bathrooms and laundry areas. Features a Pick-A-Flow Speed Selector offering airflow options of 80 or 110 CFM, providing customizable performance to meet your familys needs. With advanced Humidity Sense technology, it automatically detects and eliminates moisture, mold, and pollutants, enhancing indoor air quality. Operates quietly at just 0.4 sones at 80 CFM, ensuring a peaceful environment. Installation is made easy with the Flex-Z Fast Installation Bracket, compatible with 2 In. x 6 In. stud construction, and includes a 4 In. duct with a 3 In. reducer for older setups. Energy Star certified for efficiency. Backed by a 6-year warranty on the motor and 3 years on parts, ensuring reliable performance and satisfaction for your family.