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Hand fan is a usual tool in summer, especially for those farmers. As a Green and Economical heatstroke method, hand fan really brings a cool feeling for user, but its effect is not very obvious.
My design combines it with heatstroke medical liquid, the heatstroke medical liquid is stored in the handle. While user waving fan, with the function of capillarity, heatstroke medical liquid can be conveyed to the whole of fan, and the heatstroke medical liquid can be volatilized to surrounding air, and the user will inhale it, this is a involuntary way of heatstroke!