"220V AC Cooling Fan" is a new gas source generating device, the choice of high-strength, high-quality aluminum alloy material fatigue as the main material, it has a compact structure, small size, light weight and other characteristics, "220V AC Cooling Fan" vortex pump using special motor direct-coupled, without any transmission mechanism, because of its simple structure, the form of direct drive, so it has low noise, energy consumption province, stable performance, easy maintenance, etc., and "220V AC Cooling Fan" sent by air source water, no oil, low temperature, which is the other gas source generating device can not match.