The Broan® QT DC line of fans offers powerful airflow, with exceptional performance, and ultra-quiet sound. The DC motor is selectable between 110, 130, and 150 CFM. The QT DC also offers ultra-quiet sound ratings, producing only 0.4 sones at 150 CFM. This line of fans is the perfect combination of performance, efficacy, and silent operation. Broan QT DC 0.4-Sone 130-CFM White Bathroom Fan ENERGY STAR | QTXE110150DC