A barometric damper HVAC is a device that is used to regulate the air pressure in a home or commercial building. It is typically installed in the ductwork of the HVAC system and works by automatically adjusting the amount of air that is allowed to flow through the system. This helps to maintain a consistent pressure throughout the building, ensuring that the air is not too hot or too cold. The barometric damper also helps to reduce energy costs by ensuring that the air pressure is maintained at the optimal level. This helps to reduce the amount of energy needed to heat or cool the building, saving money in the long run. Additionally, the barometric damper can help to reduce the amount of dust and other particles that can enter the air, making the air quality better for those living or working in the building.