The top smart air purifier in our guide is Levoit’s Core 400S Smart Air Purifier, which is currently down to $190 as part of Amazon’s Big Spring Sale. Just be sure to click the on-page coupon to take $30 off the list price. The discount is the largest we’ve seen this year, though the unit did dip to $179 in 2022’s Black Friday sale. In our tests, the unit performed better than some of its more expensive competitors and the
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