Axial fans belong to the category of ventilation equipment, the distinguishing feature of which is the direction of movement of air flows. Air flows move along the axis of the impeller moving under the influence of an electric motor. Due to the significant speed of the impeller, the fan pumps large volumes of air. Axial fans can be made from various materials (fibre-reinforced polymer, extruded aluminium) and have many different designs, including round or square housing, with or without protective grille.