Panasonic FV-0811RFL1 is a ventilating fan designed for use in bathrooms, kitchens, and other areas that require ventilation. It features a sirocco blower driven by a capacitor motor for extended service life and reduced energy consumption. The fan has a spring-loaded, quick-remove grille and a damper to prevent air counterflow. It also has a Pick-A-Flow switch that allows you to choose between 80 CFM and 110 CFM airflow. The fan is UL listed for tub and shower enclosures and is not to be installed in a ceiling thermally insulated to a value greater than R60.