Heating, ventilation, and air conditioning (HVAC) systems are a crucial part of any building. Whether it’s a small house, a medium-sized office building, or a large manufacturing facility. HVAC systems often generate unpleasant noise pollution, typically in two distinct ways. Airflow is a big source of noise in HVAC systems. Generally, the noise is produced by a large volume of air generated from fans or blowers, in order to propel air throughout the system. Another [...]