[硬件] 有没有那种风力很弱的桌面风扇？
现在各个牌子都是说自己家的风扇风力足，不过我还是想找一个微风拂面那种桌面小风扇，能让空气流动起来就行。因为吹久了头疼，空气不流通又会感觉闷。买过一些所谓 100 档的那种风扇，纯噱头。我的想法是有没有那种无级变速的那种风扇，能把转速控制的很低。感觉实现起来应该不难，不过还没见过。
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