Testing and balancing (T&B) is a crucial process in ensuring the optimal performance of HVAC systems. It involves measuring airflow, pressure, temperature, and other variables to verify that the system operates according to design specifications. T&B helps identify imbalances or inefficiencies in the system, ensuring proper air distribution and energy efficiency. By adjusting dampers, valves, and other components, the system is fine-tuned to provide consistent comfort while reducing energy consumption. This process is essential for maintaining indoor air quality and extending the lifespan of HVAC equipment.