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A comment on Experiments on a $50 DIY air purifier that takes 30s to assemble. Parent comment

Re:Experiments on a $50 DIY air purifier that takes 30s to a... by xnyan on Thursday December 17, 2020 @12:03AM (#25452689)
To echo everyone else, you want activated carbon. Put it in your filter stack behind the other filter and you’re golden.
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