The Heating, ventilation, and air con (HVAC) technology provides environmental comfort and acceptable indoor air quality, which are widely employed by Architects and Civil engineers. At an equivalent time, the automotive industry also uses HVAC extensively nowadays. HVAC are often one among the most important energy consumers in any facility and should get overlooked by the people, and hence it's heavily driven by federal and state regulations.

All equipment utilized in cooling and ventilation systems generate noise thanks to the flow of air, and it's a challenge to know the phenomena involved to be ready to reduce the noise.