Built in safety thermal fuse. Prevents overheating during prolonged use. Durable ball bearing motor. Smoother spin, low noise, less vibration, extra durable. In the event of repair, bearings are easily available and easy to assemble. Auto reverse of oscillation against obstruction. Prevent from damaged by external impact when the fan is swinging. Adjustable knob for oscillation angle. Can be wider or narrower based on customer needs. 3 speed selector. Caters to different room temperature. High air delivery and ventilation. Suitable to place at factories, canteens, warehouses, hawker centres, etc.