An air damper HVAC is a device that is used to regulate the flow of air in a heating, ventilation, and air conditioning (HVAC) system. It is typically installed in the ductwork of an HVAC system and is designed to open and close to control the amount of air that flows through the system. The air damper is usually controlled by a thermostat or other type of controller. When the temperature in the space being heated or cooled is reached, the air damper will open or close to regulate the flow of air. This helps to maintain a comfortable temperature in the space and to ensure that the system is operating efficiently. Air dampers are also used to control the flow of air in a building to ensure that the air is being distributed evenly. By controlling the air flow, the air damper helps to reduce energy costs and to improve the overall comfort of the building.