The high speed rotation of the votex impeller, which produces high air pressure to create more even natural wind-like air flow, is combined with 3-dimensional air output to give you an extraordinary sense of comfort and smoothness. Six levels are optional for air speed control and even the minimum one can move the air in a space of 30 square meters. The gap between hanging bracket and main machine is meticulously designed and repeatedly verified lest it hurt your fingers. The air inlet is hidden by 3-layered cambered surfaces, which are elegant, waterproof and dustproof.