What is the main function of a damper in HVAC systems?

The main function of a damper in HVAC systems is to regulate airflow and pressure within ductwork. Dampers are critical components that help control the volume of air that moves through the ducts, thereby ensuring efficient operation of the HVAC system. By adjusting the position of the damper blades, airflow can be increased or decreased, which allows for better temperature regulation and distribution of conditioned air throughout a space.

This regulation is essential for maintaining desired indoor climate conditions, enhancing comfort, and maximizing energy efficiency. Dampers can be manually or automatically controlled, providing flexibility and improving system responsiveness to changing conditions or occupancy levels. In contrast, the other functions listed do not pertain to dampers. While temperature control, filtering air, and measuring humidity are important functions in HVAC systems, they are typically managed by other components such as heating elements, air filters, and humidistats, not dampers.