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Our favorite smart air purifier is currently 17 percent off
The Levoit Core 400S is the same price as it was during Amazon's Prime Day sale.
It’s always a good time to invest in an air purifier, but in the summer, when seasonal allergies can force sufferers to keep the windows closed, they’re especially useful. Down to $183 from its usual price of $220 (the same deal that was running during Prime Day), the Levoit Core 400S Smart Air Purifier reigns supreme in our guide thanks to its easy on-board controls, relatively quiet fan and, crucially, solid performance. $182 at Amazon There’s an auto mode that ensures the air quality is maintained, but it plays nice with Alexa and Google Assistant too.
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