An oven hood, also known as a kitchen hood, exhaust hood, or range hood, is a device that uses evacuation and filtration of the air to remove airborne grease, fumes, smoke, heat, and steam. Oven hood are employed in both domestickitchens as well as commercial kitchens. In commercial kitchens, oven hoods are often combined with fire suppression devices to ensure that grease fire fumes are put out quickly and are properly vented. Oven hoods are typically made up of a skirt (also known as the effluent plume), grease filters, and a fan. Ducted and ductless applications are the two main configurations for oven hoods.