Home Hacker News New top story on Hacker News: Experiments on a $50 DIY air purifier you can make in 30s

New top story on Hacker News: Experiments on a $50 DIY air purifier you can make in 30s

New top story on Hacker News: Experiments on a $50 DIY air purifier you can make in 30s New top story on Hacker News: Experiments on a $50 DIY air purifier you can make in 30s Reviewed by nadeem on 11:50 Rating: 5

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