HVAC air flow is the process of controlling the flow of air within a building or other enclosed space. It is an important part of the overall HVAC system, as it ensures that the air is circulated in a way that is both efficient and comfortable. HVAC air flow is achieved by using fans, ducts, and other components to move air from one area to another. This process is designed to keep the air clean and free of contaminants, while also maintaining a comfortable temperature. In addition, it can also help to reduce energy costs by ensuring that the air is circulated in the most efficient manner possible. HVAC air flow is an essential part of any building’s HVAC system, and it is important to ensure that it is properly maintained in order to ensure that the air is clean and comfortable.