The term “Outside Air Unit,” also known as an OAU, is used to describe a mechanical device for providing fresh air ventilation and cooling for industrial applications. This type of equipment is essential for a healthy work environment and compliance with occupational health and safety guidelines. An Outside Air Unit extracts outside air from the environment, cools it and supplies it directly to an indoor space. Furthermore, an OAU can control temperature and humidity levels while filtering out airborne contaminants such as dust, pollen, mold spores, dirt, bacteria and other gases. A quality OAU helps create a safer workplace and increases employee productivity by creating a comfortable interior working environment.