EVD 30 to 130 CFM Energy Star Variable Speed ECO Exhaust FanAir Kings ENERGY STAR certified variable speed ECO exhaust fans provide effective and efficient ventilation at barely audible sound levels for bathrooms, laundry rooms and other areas of the home needing ventilation. The 8 capacity settings on low speed allow the fan to be set to the required exhaust rate for continuous ventilation. Low speed set points include: 30, 40, 50, 60, 70, 90, 100 and 120 CFM. High speed rapidly clears the air of moisture,