Edge wall fans utilize advanced forward-swept blades and low-noise external or internal rotor fans with direct transmission through special-purpose motors. The square housing design allows for easy installation on concrete walls, brick walls, or lightweight steel pressed panels. The square rainproof cover structure is sturdy and aesthetically pleasing. They feature low noise, high airflow, reliable operation, a wide range of performance parameters, and easy installation, making them widely used for edge wall ventilation and air exchange in industrial and commercial buildings. According to the requirements of the conveying medium, they can be made into corrosion-resistant and explosion-proof types.