This bargain air purifier we recommend has quietly dropped in price
The Levoit 400S uses a 3-stage True HEPA filter that captures dust, pollen, smoke and pet dander. In our hands-on review of the air purifier, our tester Joanne Lewsley reported that it removed 99.5% of particles 0.3 microns or smaller and 100% of particles smaller than 2.5 microns and 10 microns or smaller. This is a level of performance often seen in more expensive purifiers, which is why we are more than happy to recommend this product.
Even in a closed room, we noticed cleaner air after just 30 minutes, effectively eliminating match smoke and incense. If it can handle that, it can easily handle animal and seasonal pollution.
Joanne Lewsley
Joanne Lewsley is a freelance writer and editor covering health and lifestyle news and features. She primarily creates factual health and parenting content and has worked with a number of global sites including BabyCentre UK, Medical News Today, Fit & Well, Top Ten Reviews and Yahoo! but also regularly contributes to Live Science on health products such as air purifiers and electric toothbrushes.
Picture 1 of 4
We particularly liked that on the control panel a series of colored indicator rings tell you how clean your air is at that moment (from red to green/poor to clean) as air quality improves, so there’s no need to check the accompanying app if you don’t want to.
We also liked the compatibility with smart home assistants like Alexa and Google. You can change settings without having to touch the machine, so you can put it out of sight/reach if you don’t want to access it often. Along the same lines, you can also set schedules and timers. Install it once and let it do its job, just what we like.
Overall, this is a stylish and powerful air purifier that delivers great results without breaking the bank.
Main features: Covers rooms up to 400 square feet, 3-stage true HEPA filter, app control, voice control, air quality indicator lights, sleep mode
Product launched: 2021
Price history: The price usually ranges between $210 and $220, so at $180, it’s a real deal.
Price comparison: Amazon: $180 | Levoit $181.99
Consensus of opinions: This is a great air purifier that is high performing but easy on the wallet. When we reviewed it in 2022, we thought it was the best air purifier on the market; it was only dethroned by its little brother, the Levoit 600S. It has 22,000 reviews on Amazon and a 4.7-star rating.
Science Live: ★★★★½
Featured in the guides: Best Air Purifiers (Until They’re Replaced by the Newest Model)
✅ Buy it if: You want a great machine to purify your air without having to spend a fortune.
❌ Do not buy it if: You would rather have the newest and most powerful model, the Levoit 600S, which happens to be our favorite air purifier.
Check out our other guides on best telescopes, binoculars, cameras, star projectors and much more.
