VAV systems offer several advantages in commercial buildings, including energy efficiency, flexibility, and improved indoor air quality. By modulating airflow to match changing zone loads, VAV systems reduce energy waste and minimize overheating or overcooling. Additionally, VAV systems can be easily reconfigured to accommodate changes in building layout or occupancy, making them ideal for dynamic commercial spaces. Furthermore, VAV systems can provide a more consistent and comfortable indoor environment by maintaining a consistent air temperature and humidity level.