We are offering the various kinds of Air Grill for use in the various commercial and industrial applications. The grille is a connection to ductwork that allows air to return to a heating and cooling system. A grill is a perforated cover for an air duct (used for heating, cooling, or ventilation, or a combination thereof). Grilles sometimes have louvers which allow the flow of air to be directed. Air grill are the vent covers on top of the air ducts. The vents have a grille design, which is intended to keep large objects from entering the air duct system.