Exhaust hood canopies refer to the models designed in rooftop style and decorate your kitchen with class and elegance. These canopies remove grease, heat, fumes & smoke by using the process of filtration and evacuation. These are primarily used in cooking for commercial kitchens as the air there gets heavy with fumes, soot and grease. These machines have a built-in duct that helps in expelling the smoke outside, which is created while preparing food.