The wall-mounted fan features low noise, high air volume, reliable operation, a wide range of performance parameters, and easy installation, and is widely used for ventilation and air exchange in industrial and civil/commercial construction walls. According to the requirements of the conveying medium, it can be made into anti-corrosion and explosion-proof types. Wall-mounted fans are generally divided into two types: those for building ventilation and those for industrial use. The setting environment and conditions for wall-mounted fans vary, so it is necessary to fully consider their uniqueness during the preliminary planning phase. The selected installation location and surrounding environment must meet future maintenance needs.