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who-are-we-anyway t1_ja02fla wrote

What does it say on the box? Air purifiers usually say how much space they are good for.

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misterjive t1_ja04nrz wrote

And they usually over-estimate that, so take large numbers promised by a small air purifier with a grain of salt. Look for the CADR figure, and if they don't post that prominently on the packaging there's probably a really good reason why and you should look elsewhere.

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