What is air performance/pressure drop? Why is it important?

Air Performance is the damper’s ability to pass air through open blades with minimal resistance.

HVAC equipment in your ductwork will cause a certain amount of static pressure. Static pressure will resist the dynamic pressure of airflow as it passes through the control damper, which creates a pressure differential that lowers the airflow’s dynamic pressure. This difference in pressure is commonly known as “Pressure Drop”.

A lower pressure drop means less restricted air flow and ,ore efficient air performance across the HVAC system.