Using renowned TurboChef technology, the HHC2620 ventless conveyor oven offers high-heat transfer rates, and the split belt technology enables you to cook different food at different times/speeds, using the individually-adjustable speed settings. It is also ventless, meaning there is no need for costly ventilation. It uses independently-controlled top and bottom air impingement to ensure all food is cooked to perfection every time. This stackable oven is easy to clean, and its simple digital controls make it easy to use, and when not in use, the oven has an idle mode for energy conservation.