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youpin Xiaomi is hosting another innovative product called the Weiyuan Wireless Smart Manual. The design of this fan has been such that it has won the German iF 2019 design award, as well as the Good design award and the Red Dot design. The fan costs only 39 yuan ($ 5), but after the financing period it will cost 69 yuan ($ 10). The Weiyuan blade fan has a simple but impressive design. The design is such that air moves through a ring without an external blade. Due to the lack of physical blades, the fan does not cause dust and damage to children’s fingers. This bladeless fan uses a similar mechanism to other well-known brands such as Dyson. The air is introduced by a compressor at the base and then directed into the ring, which eventually exits the gap around the ring and passes through a shape similar to the wing of a plane (Coanda’s effect). The lower part of the Weiyuan blade-free smart hand fan uses a 7-ball diagonal flow impeller that can allow a high-pressure current to enter...