The device is connected with six small fans installed on two sides of the front wheel. These fans help to blow clean air to riders’ face while creating power for the battery which is used to create power for the filter.
Read more at
http://vietnamnews.vn/environment/50...i4HATTDep00.99
The fans are powered by battery, and the battery is charged by the fans? Sounds like another great perpetual motion machine.
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Some people are like a Slinky ... not really good for anything, but you still can't help but smile when you shove them down the stairs.