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The Levoit Core 400S Smart Air Purifier, is the efficienct air purifier to clean a whole room properly. AirSight Plus technology scans the surrounding air for airborne particles as small as 0.3um, this air purifier focuses on real-time home conditions - this is more than just having an air purifier. Levoit engineers designed the air purifier's internal structure to provide powerful air purification while maintaining noise levels as low as 24dB.
Features:
- Intelligently purifies the air in a 403 sq ft room 5x per hour
- An Efficient Middle Filter helps create a cleaner, healthier home - Our air purifiers are scientifically proven to capture particles as small as 0.3 microns including pollen, dust and more.
- 360° filtration system uses activated carbon to remove gases and odors and a Efficient Middle Filter to capture 99.97% pollutants as small as 0.3 microns.
- Automatically senses and reacts to changes in air quality - then reports pollution in real time on LCD screen and on your free VeSync Link app.
- In the sleep mode, the air purifier monitors and purifies using the quiet settings, with a dimmed display and can be totally turned off.
- Program your machine to turn off after pre-set intervals between 1 -12 hours.
- Safe and easy to clean with low maintenance, easy-to-replace filters. With built-in notifications when they require replacing.
- Using compatible voice control services, control your air purifier with simple, spoken instructions. Works with Alexa and Googlevoice Assistant.
- Warning – unauthorized replacement filters are not tested. Only authentic Levoit filters are recommended to ensure a sealed system and proper functioning of the machine. The official Levoit Core 400S replacement filter can be found by searching "B08SQQK6K7" in the search bar.
Madalitso
2025-08-10 15:33:24
This air purifier works exactly as advertised. It effectively improves air quality, and the difference is noticeable. The companion app is a great bonus—it makes it easy to control settings remotely and monitor air quality in real time. Setup was simple, and it runs quietly, even on higher settings. Overall, a reliable and convenient air purifier that does its job well!
Matthew Rothenberg
2025-08-01 12:23:55
We've had a few different air purifiers and I decided to upgrade the one in our bedroom after me and my wife both had itchy eyes and woke up stuffed up for a few weeks in a row.For context, we have two double coated dogs who shed like crazy, we live in a town that is 65% conservation land, IE a lot of nature so there is a ton of pollen, ragweed, etc.After putting this (600) in our large bedroom we almost instantly stopped getting itchy eyes and stuffed up noses. FYI, neither of us have allergies as far as we know but there is only so much anyone can take before their body starts fighting back and even with the other air purifier in the room, it wasn't working well enough even on high.As soon as I set up this new one and put it aon auto-mode it kicked into high gear and cleaned the air within a minute.Having another and larger air purifier in our living room on another floor of the house, I decided that I would replace it, but wait until the filter needed to be changed. Well, after a few weeks I decided I couldn't wait any longer, especially now that this went on sale. So I bought a 2nd one, got it the next day and after the setting it up in 2 minutes and connecting it to the app, it did the same thing as the first one...IE it recognized the air wasn't clean, kicked into high gear for a bit and now has been steadily on low showing 1pm / 2.5 since.Sure it goes back into high hear if we open a window for a bit, or we're cooking, etc but that's exactly what you want it to do. Even on high it's quiet and i know that it's recognizing there is something in the air that should be filtered out and it does it so effectively.I've also done my research and these products rank right at the top with more expensive options on the market so I know it's good bang for your buck.,Lastly, it does (as all air purifiers do) recommend that you have at least 18 inches of space all around it. I have mine in places where this is not possible bc I dont want it sitting in the middle of the room. I bring this up bc I'm sure if I did, it would work even better but I'm not sure I can imagine how it could work better.
Tami McClure
2025-07-30 10:24:18
Got this product to help clean the air and remove unwanted odors. Is not too big, runs very quiet and is easy to program. I have asthma and have noticed an improvement in the air quality. Get it…you won’t be disappointed.
WarriorHockey21
2025-06-30 14:13:14
Due to living by a fairly busy road, by farmland, and having an oil furnace, our house gets very dusty. To the point where you can sit in a chair on a sunny day and just see dust floating through the sun beams. After years of trying other purifiers that just didn't seem to work, I finally broke down and researched a better one for a change. One article a read listed this one, and after reading through reviews I thought I'd give it a shot.Overall, this purifier was a good value for the money. We keep ours on auto mode most of the time, and it definitely adjusts based on air quality. We have the unit in our living room which is open into the kitchen. When we're cooking, even if there isn't smoke, the number climbs (second picture), sometimes into the 200's and the color is red. Which makes sense due to the burn off of unseen smoke and particulate into the air. The purifier adjusts speed on auto setting, and starts working to knock the number down and get air quality back to normal within a few minutes of being done cooking. Even when the unit is running on "high" fan speed, it's not really loud. As I said, we use ours in the living room but I don't think it would cause much noise in a bedroom either.As far as the size, it's not overly intrusive and is easy to find space for. You just need to make sure you account for the clearance it needs for air. It's also built well for what it is, and doesn't "feel" cheap.Overall performance - we haven't had to dust near as much, as this purifier noticeably cuts down on the dust. It's a performance you can "see", and that's why I'd recommend this air purifier for the cost.EDIT: Added a picture of the filter at cleaning; I cleaned half and left half to show the contrast. Glad this thing is sucking up all that dust instead of our lungs, or having it sit everywhere else on shelves and hard to reach places!
John Lin
2025-06-14 15:29:15
This air purifier is quite sizable and seems to do an ok job at filtering out dust in my room. I have noticed less dust accumulation around but there is still some. The smart features are super conveinient and are a must have in my opinion, and I was able to easily connect this with Alexa for voice control.The only gripe I have is that it is not as quiet as I was hoping; at the lowest setting, the purifier still emits a 43 db sound, which is sort of like a quiet hum. I still can sleep with it on without too much issue, but it wasn't as silent as I was expecting it to be. My standards might be high though since I was expecting the device to be almost noiseless.Regardless however I found this to be a ton quieter than other purifiers I have bought in the past, hence why I continue to use it to make the air in my room a bit cleaner.
alberto
2025-06-07 11:28:13
Llevo pocos dÃas usándolo y la calidad del aire es 100%mejor el modo automático es fantástico el solo sube o baja la velocidad del ventilador dependiendo de la calidad del aire y es super silencioso creÃa que por su tamaño iba a hacer mucho ruido cuando está en el nivel más bajo ni se oye
Patricia M.
2025-05-17 15:20:09
Es la segunda vez que lo compro (le regale el otro a mi hermano, que despues de 1 año seguia funcionando al 100, se lo di para eliminar el olor del gato en su cuarto), tiene varias velocidades cada una un poco más ruidosa que la otra, pero sin llegar a ser molesto. El modo dormir no hace nada de ruido, incluso apaga la luz del display para que descanses a oscuras. Se maneja perfectamente desde el celular o con comandos voz mediante alexa. Yo lo uso todas las noches, porque mis perros duermen en mi cuarto por las noches y es excelente para eliminar el olor a perro (son 2 shitzus, asi que tampoco son muy grandes, ni sueltan mucho pelo. Pero para ellos me funciona perfecto)
Rano
2025-04-27 13:33:01
I really like this, it's bigger than I expected but it's super, exactly what I need, working very well, not noisy at all, sounds like AC works. Cleaning air for real, I have vacuum with lazer to detect dust, i decided to check how the levoit is working, when I turned on the air cleaner after some time, I checked with my lazer vacuum to see the dust, and it's really works it's really less, and honestly I'm sleeping good, headache and my throat not hurting me from dust. Who is living in the building with AC, they will understand how AC brings dust. Highly RECOMMEND THIS LEVOIT AIR CLEANER!
Enes Sefer
2025-04-26 14:29:59
Works well and the size is quite reasonable
Gianma90
2025-01-16 11:36:26
Amazing experience and ease of use. I have purchased two of these. It really does the trick - the automatic evaluation of air pollution works really well. Couldnt recommend it more.Works well (even if not amazingly amazingly well...) with food odours and my girlfriend, who is alergic to dogs, also benefited from the cleaner air at my parent's place.4.5/5
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