Explosion-proof side wall fans utilize advanced forward-curved blades, low-noise external or internal rotor fan motors, and directly connected transmission. The square housing design allows for easy installation on concrete walls, brick walls, or light-gauge steel sheeting. The square rainproof cover structure is sturdy and aesthetically pleasing. This product features a glass fiber reinforced plastic housing, wing-shaped axial flow impeller, square rainproof cover, and is equipped with a low-noise explosion-proof motor for direct drive. It boasts characteristics such as attractive appearance, excellent explosion-proof performance, stable operation, lightweight overall structure, and easy installation. Side wall fans are widely used for ventilation and air exchange in general factories, warehouses, offices, and residential buildings.