An air duct system consists of a pathway for conditioned air that is, cooled or heated by the ventilation, heating, and air conditioning system (HVAC). The air duct system consists of various components such as smoke & fire dampers, vibration isolators, volume control dampers, stack boots & heads, turning vanes, terminal units, plenums, and air terminals. The air ducts are mainly classified according to their use and requirement in various industries. The material used in air ducting used according to the requirement it can be Aluminium, Galvanized Steel, Polymers, Fiberglass, and Others. In addition, the shape of the air duct can be oval, rectangular, or round shape.