You may have seen the Molekule air purifier show up in your social feeds lately. It’s a really slick, really expensive machine that makes some strong claims about its ability to purify air. Well, we’ve been testing air purifiers for years at Wirecutter, and in our trials, the Molekule fell short. By a lot. Here's how.

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Our in-depth guide to the best air purifiers: https://wrctr.co/2N1iwYM