@FinchTH I like the variant with a single 5x20x20 MERV 16 filter. Good performance and can't really get any simpler to assemble (can use tape or velcro instead of the rubber bands, but the rubber bands make filter replacement very easy!)
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@FinchTH 我喜欢带有单个 5x20x20 MERV 16 过滤器的变体。性能好，组装起来再简单不过了（可以使用胶带或魔术贴代替橡皮筋，但橡皮筋使更换过滤器非常容易！）
https://twitter.com/Read4Ks/st...