Our favorite Levoit air purifier is $37 off in this Prime Day deal

Engadget

2 days ago

We now know that the 2025 edition of Amazon's blockbuster Prime Day sales event will start on July 8, and it's set to be bigger than ever as it will run for four days. But you don't need to wait until then for tasty deals. There will be plenty in the lead up to the event, including this one for the Levoit Core 400S air purifier. At $183, the device is $37 off. It's not quite the lowest price we've seen for this model. However, it's not too far off that mark of $176.
The Levoit Core 400S is our current pick for the best air purifier overall. Sure, it might not have the prettiest design of all the options we have tested and the companion app might have a little too much going on. But the Core 400S does its job and does it well.
This smart air purifier is slated to clean the atmosphere in spaces of up to 1,733 square feet in as little as one hour. The Core 400S has a cylindrical shape with vents at the top and a touch display that shows air quality readings. You'll be able to get a sense of the current air quality in your space at a glance with a color-changing ring that will light up in blue, green, orange or red. The 360-degree filtration system is said to be capable of capturing over 99.9 percent of pollutants as small as 0.3 microns, such as dust, pet dander and pollen.
There is an auto mode that should suffice for maintaining air quality, but the Core 400S is compatible with Alexa and Google Assistant voice controls too. The fan isn't too loud, even when it's operating at maximum speed — the volume topped out at 62dB in our testing. Meanwhile, at $50 each, the air filter replacements aren't too expensive compared with those from many of Levoit's competitors.