Air King 42 180 CFM 2-Speed Under Cabinet Range Hood

ENERGY STAR certified Adjustable Capacity Motor: 4 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, 50, 70, or 90 CFM. High-speed rapidly clears the air of moisture, odors or other contaminants Internal On/Off switch allows override of continuous ventilation operation.