Recent developments trends in HVAC (heating, ventilation, and air-conditioning) systems: A comprehensive review

HVAC (Heating, Ventilation, and Air-Conditioning) systems maintain a consistent temperature and humidity inside all year long, making it possible to provide pleasant working and living conditions in homes, businesses, and other buildings. HVAC systems are making human existence not only healthier and wealthier, but also more abundant. A variety of goods, with consideration for efficiency, excellence, and speed to market, are possible in a controlled environment. This study presents a thorough literature assessment of HVAC systems, with a particular emphasis on the improvements made to people's thermal comfort in the recent years.