Air King AK863L is an exhaust fan with light, suitable for bathrooms up to 100 sq. ft. and other rooms up to 125 sq. ft. It features a polymeric grill, moonstone glass lens, heavy gauge cold rolled steel housing, and a one-piece polymeric blower wheel. The motor is heavy duty, permanently split capacitor, plug-in, 4 pole type, suitable for continuous operation. The unit can be mounted directly to the joist or centered between joists, and it has a ventilating area of 8" x 8". It comes with a plastic collar for 4" duct connection and a built-in non-metallic back draft damper.