This is a commonly used ventilation and air exchange device. By rotating its blades, it propels air to flow in the axial direction, featuring high airflow volume and low air pressure. It has been widely applied in various scenarios, including industrial plant ventilation, air conditioning systems, and automotive heat dissipation. With a simple structure, ease of installation, and low operational costs, this device effectively enhances air circulation, thereby fulfilling the heat dissipation and ventilation requirements of diverse environments.