Levoit Core 400S Smart True HEPA Air Purifier review - Which?

The manufacturers of the Levoit Core 400S claim it filters at least 99.97% of airborne particles of different sizes with its HEPA filtration, while also keeping noise levels to a whisper. These are bold claims, so we’ve tested this air purifier to see how it performs in our CADR tests, ease of use and noise tests. Read our full review to find out how it scores.

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