A Modular Air Unit (MAU) is a unit of air conditioning apparatus composed of multiple self-contained, interchangeable modules that are easily installed and maintained, providing efficient cooling and comfort in all types of commercial and industrial establishments. The modular design and flexibility of MAUs allows for improved efficiency, increased energy savings, lower maintenance costs, and more reliable performance compared to traditional HVAC systems. With their unique design, each module can be individually replaced or repaired to extend the life expectancy of the system.