1.An air damper, also known as a HVAC damper, is a device used in heating, ventilation, and air conditioning systems to control or regulate the airflow. It is typically a movable plate or valve that can open or close to adjust the amount of air passing through a duct or ventilation system.

2.Wall-mount backdraft dampers, also called wall shutters, install vertically onto the wall vents of an HVAC system and prevent air from flowing backward. They feature spring-loaded blades that open when the system is running and close when it is not to keep the conditioned air in the occupied space.

3.Air dampers are essential in HVAC systems as they help maintain the balance and control of air distribution. They can be manually operated or automated using electric, pneumatic, or motorized mechanisms. By adjusting the position of the damper, the flow of air can be directed to specific areas, rooms, or zones in a building.

4.There are different types of air dampers available, including volume dampers, pressure relief dampers, fire dampers, smoke dampers, and balancing dampers. Each type serves a specific purpose in maintaining air quality, safety, and comfort in a building.

5. Air dampers play a crucial role in energy efficiency as well. By controlling the airflow, they help optimize the heating or cooling process, ensuring that conditioned air is delivered where it is needed, reducing wasted energy and improving overall system performance.