What is the definition of a volume control damper? A volume control damper is a device used to regulate the air flow in an HVAC system. It is typically used to control the flow of air in a duct system, allowing for the adjustment of the airflow rate for specific rooms or areas. The damper is usually connected to a control system that allows users to adjust the flow of air, often with the help of a remote control or a wall switch. Volume control dampers are used in residential and commercial buildings to regulate the air temperature, making the environment more comfortable and energy efficient. The dampers can also help to reduce noise levels, as they can be used to reduce the amount of air passing through a system, thus reducing the noise that is generated. Volume control dampers are also frequently used in industrial settings, in order to regulate the flow of air to machinery or other equipment.