Levoit

Core 400

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Overall

#59 in

Air Purifiers

according to Reddit Icon Reddit

Sentiment score76% positive
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2
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Top Pros

Top Cons

Last updated: Aug 16, 2026

Reddit Reviews

Reddit IconInGoogWeTrust
8 months ago

It’s a good choice for the money. I’ll probably get one for my living area eventually. I just got a core 400 a few days ago for my bedroom. Note that you can get the 600 on Amazon for $260

Reddit IconBartend23
3 months ago

I have the Levoit 300s for our small bedroom and it’s great. I use the 400s for a large room and 600s for the main living space. Seem to do the trick quite well

Reddit IconBizarreMoose
11 months ago

If you buy one I check for something along the lines of True Hepa filters to catch the finer particles and activated carbon pellets to help out with odours. There are so many reviews comparing different brands, you'll usually see the same few at the top of the charts and the units will state what size of a room they're ideal for. It would come down to finer details like noise levels, filter replacement costs and if you care about added digital tech. Another deal breaker could be if it has an ozone feature which can be a health risk. It could even just come down to if something is on sale. After checking around and comparing reviews I settled on a Levoit Core 400s on sale and it does a good job with smoke where I've had this since the last bout of forest fires a few years ago, but it does lose that "whisper quiet" feature over time. Went for it since it also helps a good deal with pet hair and odours. The cost of the filter replacements keep going up though and the secondhand ones can be pretty cheaply made which makes me want to consider another brand or even the DIY method whenever a replacement seems necessary. You can check out a site like https://www.airpurifierfirst.com/ to see what's out there.

11 months ago

I like to use them for that too! Just not if it starts to get a little bit clunky with a wobbly fan breaking up the flow of sound, but I have super sensitive hearing. If I keep the 400s on a speed of 1 or above it works just fine, just not great anymore at the sleeping level for me. It's a good brand and their current square shaped fan the Vital 200s is supposed to be even better. Overall the ones mentioned so far Levoit, Blue Air and Coway are all pretty reliable options that help a lot with smoke filtration.

Reddit Iconchrisx14
2 months ago

They’re okay. I bought the core 400S and the Blue Air ‘Blue Signature’ tried both for a week. I had them running simultaneously downstairs. I wanted to see which one was more responsive to monitoring the air quality. Blue Air was hands down was the best. It was responsive enough to alert me within seconds that my air was polluted every time I used cleaning spray, toasted bread, sprayed perfume or whenever I dusted a surface. Unfortunately Levoit didn’t warn me about any pollutants unless I was 4-5 feet away from it. I ended up returning the Levoit and keeping the Blue Air https://preview.redd.it/lf71ik3zs67h1.jpeg?width=2268&format=pjpg&auto=webp&s=cde8a7458021ee91f070ba5ba1d451b1f6df8392

Reddit Iconcriterion67
6 months ago

Funny to see this post when I'm actually converting my Levoit Core 400S to use ESPHome locally, so no cloud. Waiting on the parts to come in from Amazon today as a matter of fact. I've had the air purifier for a couple of years now and it's worked flawlessly. I've used the cloud dependent VeSync integration in home assistant and it's worked well. It's been running for over 2 years 24/7. I just clean it once a week and replace the filters on a regular basis. I've been trying to rid my home of cloud-based devices and have been converting everything over (or replacing) for local control. [Here's the conversion guide that I'm using.](https://github.com/tuct/esphome-projects/tree/main/projects/free-levoit)

6 months ago

No, everything that you can do/ see with the Levoit app or on device is covered. Great replacement.

6 months ago

Same for the [Levoit](https://github.com/tuct/esphome-projects/tree/main/projects/free-levoit) air purifiers.

6 months ago

Convert it over to ESPHome via [Free Levoit](https://github.com/tuct/esphome-projects/tree/main/projects/free-levoit) and make it local. I'm using method 2.

Reddit IconEmbarrassed-Skin-479

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