Summit 30-Inch Wide Over-the-Range Microwave w/ Versatile VentilationFEATURES Range hood function Under cabinet ventilation with a high low setting Versatile ventilation options This unit can be set up with a vertical duct, horizontal duct, or for recirculating operation Charcoal filter included Single charcoal filter is included to accommodate ductless (recirculating) setups Removable cassette filters Two removable aluminum filters help to absorb odors One touch cooking options Touch controls for easy heating of