The Whisper Thin DC exhaust fan with Pick-A-Flow CFM allows you to choose your airflow, 80 or 100 CFM. Simplify the selection process and ensure optimum CFM performance while eliminating humidity, mold, mildew, and other air pollutants from the bathroom and increasing your air quality. In addition to bathrooms, this fan is your ventilation solution for medium-to-large sized rooms - laundry room, sunroom, basement, or garage.