LEVOIT Core 400S-RF Air Purifier H13 HEPA Replacement Filter, Highly Efficient Activated Carbon Pre, Air Filter Against 99.97% Allergies Dust Pollen Smoke, Core 400S-RF, White


LEVOIT Smart True HEPA Air Purifier Core400S
HEPASmart Technology
CADR 400 up to 83m
Fully Certified air purifier Core400S


Weight: 1.04 kg
Dimensions: 24.5 x 24.5 x 26.5 cm; 1.04 Kilograms
Brand: LEVOIT
Model: Core 400S-RF
Colour: White
Colour: White

162 Responses

  1. Anonymous says:

     United States

    This is a strong machine, runs well, not too loud for all the air it pushes through. I love how I can manage the device, including filter life, thru their app.

  2. Anonymous says:

     United States

    Very pleased with this Levoit air purifier! My first floor is all open and it is where all the critters congregate! It takes care of animal ordors and the pollen! Im buying another unit for my bedroom!

  3. EricaRFGzzwkjhw says:

     United States

    I had mistakenly ordered the smaller version of the levoit series and was not quite enough to cover my studio. So, I ate that one and order the 600. By far the best buy yet. Makes the air smell clean and crisp. has drastically reduced the dust and the outside smells of the city. Being on the 23rd floor of my building there is a lot of dust and city smells. Highly recommend!

  4. Anonymous says:

     United States

    Golden Review Award: 9 From Our UsersThe purifier itself is very high quality and I highly recommend it.
    The Amazon listing says it will cover 3175 ft2. This number is nowhere in the manual. The manual says “635 ft2 for 5 exchanges/ hr or 1588 ft2 for 2 ex/hr. Effective for larger rooms but purification will take longer.”

    Where did the 3k figure come from? This is misleading advertising.

    The unit itself is excellent. App setup is effortless.
    Very solid and unlike some other brands, the filter is well protected.

  5. LynellMidgett says:

     United States

    Golden Review Award: 6 From Our UsersI recently had to get a new HVAC system. It’s a higher-end unit that has a filter in the indoor unit [some indoor units are in the garage, others in a closet inside the house], which eliminates the need to have filters in the return vents in the house.

    When deciding on what type of filter to use, I found quite a few DIYers who say it’s not worth getting the really high-priced dense filters, even though those filters say they trap particles that mid-priced filters cannot. These DIYers reasoning the high-priced dense filters make it more difficult for air to pass through them, which requires your HVAC unit to work harder and longer, which leads to higher monthly electric bills. What they say to do instead is use the mid-priced filter and use a high quality in-room air purifier (or air purifiers in multiple rooms).

    My house has an open floor plan where the kitchen, eating area, and main TV room are all, essentially, one room. So I placed this Levoit in the middle. It does a fantastic job of clearing the air! Couldn’t be happier. It’s really easy to control, whether you prefer using the buttons on the unit, controlling with an app, or controlling via Alexa. And it is very simple to change the filter. All in all, great unit!

    Great at cleaning the air! Really easy to use!

  6. Anonymous says:

     United States

    I like the idea of clean air in my house, and have been running multiple purifiers for years. All of my other units are Coway Airmega AP-1512HH Mighty. They have been on for 5 straight years with filter changes and not a single issue.

    For no good reason, I wanted to try something new with a higher sq/ft rating.

    Ordered a BLUEAIR Blue Pure 211i Max and it made a weird sound right out of the box. Clicking, and the unit shook so something was out of whack. Instead of having it replaced, I returned and went with the Levoit.

    As best as I can tell so far, its an excellent unit. Feels sturdy and high quality. Extremely quiet on auto mode, which runs lower than the low setting when the air is clean. Set to low, its still very quiet. High its loud, but not louder than my Coways, and the amount of air its passing is staggering.

    I really like the idea of scenario specific filters, which I will try next. Levoit offers 600c filters specific to houses with pets, smokers, etc.

  7. DevinFields says:

     United States

    I bought this unit for the main house and a couple of the smaller ones for the bedrooms because of the forest fire smoke that kept drifting thru my area. I am not usually noticeably affected by air quality but my wife has allergies and other health issues – she says she has noticed a definite difference in how she has felt since I got these running.

    The auto mode for the unit is excellent….it will monitor the air quality and automatically adjust speed to match current conditions. It also connects easily to Alexa and can be controlled that way. I really like the display that lets you know the current air quality…especially how it changes color if the air quality is decreasing.

    Changing the filter is simple…quick twist of the base, pull the old filter out, drop the new one in and twist the base back on…done.

    While it has its own phone app for manual control, I connected it with the Alexa app and it is working great.

    I’m very happy with this air purifier.

  8. Anonymous says:

     Canada

    Is it normal not to receive the Remote Control ?
    On the photo of the add, there is a remote control. So it is strange it is not include.
    Could it be an open box that was not check well
    It says it also has the WiFi Alexa. I also wonder if it has these function…

  9. Anonymous says:

     Canada

    I love my air purifier, but these filters have gone too high up in price. I’ll be shopping around for a replacement air purifier soon.

  10. EileenBishop says:

     France

    Nice machine, working fine, I feel that I have clean air. When there’s any another smoke in the area, it will be indicated in the application.
    If you take this machine, I really recommend to use the WiFi application.

  11. Step2 says:

     United States

    The 400s works really well. Like being able to program it, to my android phone.

  12. Anonymous says:

     Canada 🇨🇦

    In terms of clean air, I’m my opinion this does the job well.
    I have two cats and purchased this cleaner at that when my family member visits, her allergies are more under control.
    Works great with Alexa, and I like that it has a LOCK button so that my cats can’t jump up on the cleaner and change the settings or even turn it off while I’m gone.
    Fan is very quiet on its lowest setting but when changed to highest setting you can definitely hear it very well (it’s loud but still somewhat bearable).
    Overall, I’m very happy with the purchase and would recommend this cleaner.

  13. Anonymous says:

     United States

    One of the best purchases I’ve ever made. Clears allergens quickly and stops my sneezing and coughing within minutes of turning on.

  14. MilagroSXZ says:

     United States

    Love the fact that it auto senses air quality and kicks up the fan speed only as needed when in auto mode based upon the toxicities in the air.

  15. Anonymous says:

     Spai

    Yo lo compr para una casa pequea y es voluminoso para poco espacio, lo devolv y compre el anterior modelo que es perfecto de tamao y el resto es genial

  16. Anonymous says:

     United States

    Setup was easy and the app is great. Reliably works on a schedule with no issues whatsoever and no connectivity issues after almost 6 months. This unit replaced a Blueair that was incredibly unreliable (also the Blueair app is complete garbage).

  17. Anonymous says:

     United States

    All the professional reviews are accurate, this is the best air filter at it’s price range. I love the app it is pretty cool and this thing really makes the air much cleaner, any smells go away quickly, the air is much crisper!

  18. RebbecaCope says:

     United Kingdom

    Bought when we had a lot of visitors in and out over Xmas. Dust was kept low, smells cleared and as many were sniffling it gave more confidence for health knowing it was taking things out of the air.

  19. Anonymous says:

     United States

    I was back and forth between this and the Molekule and ultimately chose this model. Great decision. It is quiet, works great, got rid of mildew smell and the air “feels” fresh in our room. I plan to pick up a few more for our other bedrooms and a larger unit for downstairs. Significantly cheaper than the frilly Molekule. Just buy it and don’t look back.

  20. TomasBeaurepair says:

     United States

    Golden Review Award: 2 From Our UsersJust started using this about a week ago. I really enjoy the sleep feature so I can have it on and not be bothered by the noise or blue light because it turns off when sleep is on. Have to give it a few more weeks to see how well it really does but will update this review at that time. So far, I am happy with my purchase.

  21. Anonymous says:

     United States 🇺🇸

    Cleans the room quickly. The display rings are a good guide on the work being done by the machine. Highly recommended.

  22. EdmundoHostetle says:

     United States 🇺🇸

    This product cleans the air in my room better than other machines i have used in the past. Air always smells fresh an clean.

  23. Alan Holden says:

     United States

    Golden Review Award: 2 From Our Usersi don’t know how I lived without my LEVOIT Air Purifier so when it came time to replace the filter I went with the name brand. The filter is easy to install and that it improves the overall air quality in my home. I noticed a difference in my allergies symptoms right away. Overall, the LEVOIT Core 400S Air Purifier Replacement Filter appears to be a high-quality product that effectively purifies the air. I will continue to purchase this item.

  24. IolaEichel says:

     United States 🇺🇸

    I love this product the sleep mode is so quiet and has filtered out so much of what was in my bedroom I’m able to breath so much better. I supper from allergies and highly allergic to duct so I have it constantly running to keep the dust and allergies at bay. Worth every penny.

  25. Anonymous says:

     United States 🇺🇸

    Easy set up and I control it easily on the app. So far no complaints. The air in my house feels lighter and I stopped sniffling! Might get a 2nd one for the other half of my house

  26. Cara Nitz says:

     United States 🇺🇸

    This purifier works great. It’s quiet and the only time I hear it is when it detects something in the air that requires it to work a little harder, but then slows back down when the air purity level reaches normal again.

  27. Anonymous says:

     United States 🇺🇸

    Golden Review Award: 2 From Our UsersNoise at the highest level is rather loud. Usually have product set at 3 noise level is better. Bought the air purifier because of the dust in the house. We put the product downstairs for use between 2 rooms. Still dusty but not as bad.

  28. Anonymous says:

     United States 🇺🇸

    I can set a range of air quality where it operates automatically!! All with an app on my phone.

  29. Anonymous says:

     Italy 🇮🇹

    Ottimo, gestibile via app. Pratico con le
    Maniglie, silenzioso. Consiliato
    acquistare un filtro se come me avete comprato da Amazon warehouse. Ho risparmiato ma dovete mettere in conto che non possa essere presente se acquistato non nuovo o che sia ad un livello di consumo ( peraltro indicato da purificatore chiaramente nell’app) ottimo acquisto!

  30. Anonymous says:

     Mexico

    Es la segunda vez que lo compro (le regale el otro a mi hermano, que despues de 1 ao seguia funcionando al 100, se lo di para eliminar el olor del gato en su cuarto), tiene varias velocidades cada una un poco ms 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)

  31. [email protected] Courtney Morrison says:

     United States

    Asthma person here. Pollen, dust and pet dander have me In respiratory fits.

    This particular Levoit 400S cleared my main family room in the first hour, fan on high.

    While running, the wifi/bluetooth discovery was quick and intuitive.

    Not a fan of proprietary apps -as this unit is not Home Kit compliant (but does work w Alexa and Google).

    The VeSync app shows it actively monitors indoor particulates at PM2.5 -I really hope the readings are accurate.

    Overall -right out of the box, the Core 400S seems really promising. Will update in 6mos.

  32. EmmanuelZuy says:

     United States 🇺🇸

    We bought this air purifier at our Vet’s suggestion as our cat has asthma. We have a wood burning stove for heat and our cat’ asthma is exacerbated by it. He has not had an attack since installing and running this purifier 24 / 7. Also, when I’m burning something in the kitchen, it kicks on at a higher mode to eliminate the smoke for a bit then goes back to normal (low) mode. I love it.

  33. FideliaMartino says:

     United States 🇺🇸

    I like this purifier. It takes in air all the way around it and it’s quiet. I like how it have handles on the side to move it too.

  34. SondraPattison says:

     United States 🇺🇸

    We heat with a woodstove, and have people with allergies in the house. If it gets a bit smokey from cleaning out the ash, or when cooking fumes get heavier, the automatic function kicks right up and clears the air in minutes. This was really worth the cost.

  35. JennaAPBPtzm says:

     United States 🇺🇸

    I noticed my 7 year old son would start to cough at night when he got into bed. We have three cats and two dogs. I decided to try this product and my sons coughing stopped almost immediately.

  36. ElmerMessier says:

     Spain 🇪🇸

    Ocupa poco espacio, en general todos los purificadores de aire son buenos mientras utilizan un Filtro Hepa que es lo mas importante

  37. Anonymous says:

     United States 🇺🇸

    I live in Bakersfield California where the air is very dirty. I had a bad run in allergies this past fall and someone told me to invest in air purifiers. I did my due diligence and read multiple reviews on different purifiers at different price points. I decided on one of these for my bedroom and one for my living area in recommended sizes. My house no longer smells!! I vacuum the filters a couple times a month. Im sleeping better and allergies are all but gone. I’ve been running both full time for over two months and filters are still good. Highly recommended.

  38. Anonymous says:

     Italy 🇮🇹

    Ottimo prodotto, silenzioso, smart
    Dopo pi di un mese di utilizzo il mio voto positivo
    Ottimo come ricambio d’aria e per non stratificare il calore del camino

  39. Anonymous says:

     United States 🇺🇸

    Works great, gives you a air quality grade and the app works awesome

  40. Anonymous says:

     Spain 🇪🇸

    Detecta los humos y malos olores al instante. Fcil de usar y programable.

  41. Anonymous says:

     United States 🇺🇸

    Love this purifier! I sleep great with it. No noise and my air is clea

  42. Anonymous says:

     United States 🇺🇸

    What a relief to be able to breathe better and reduce congestion in my lungs due to asthma. I wish I had bought one ages ago!

  43. Anonymous says:

     United States 🇺🇸

    Golden Review Award: 2 From Our UsersI purchased this air purifier a few weeks ago, and I’m very pleased with my purchase. It has made such a difference in my home, especially for my wife, who suffers with severe allergies (mainly pet allergies). The filter replacement is so easy and the mobile app provides helpful information on the air quality, filter life, and more. The whisper-quiet operation is great, and it’s been a lifesaver in dealing with cat dander. Plus, the filter lasts for a long time, so it’s worth every penny! We’ve already decided that we want one in every room now, so we’ll definitely be purchasing more!

    I purchased this air purifier a few weeks ago, and I'm very pleased with my purchase. It has made such a difference in my home, especially for my wife, who suffers with severe allergies (mainly pet allergies). The filter replacement is so easy and the mobile app provides helpful information on the air quality, filter life, and more. The whisper-quiet operation is great, and it's been a lifesaver in dealing with cat dander. Plus, the filter lasts for a long time, so it's worth every penny! We've already decided that we want one in every room now, so we'll definitely be purchasing more!

  44. Anonymous says:

     United States 🇺🇸

    Wife and I both have allergies and this seems to have helped. I run it on automatic mode all the time and it keeps the air fresh without making lots of noise and doesn’t add any smell like some of the others. Very simple to setup but it does take up a wall plug and a small area. Haven’t used the wifi yet.

  45. Troy Christian says:

     United States 🇺🇸

    We liked it so much, we bought a second. Also gifted one!

  46. RoslynMacGregor says:

     United States 🇺🇸

    It does what it says and it does it well. Looks good, too.

  47. Julian Chokkattu says:

     United States

    Golden Review Award: 3 From Our UsersA chief reason for selecting this LeVoit air purifier was the user interface, and the unit lives up to the description. I set this up in our bedroom suite and programmed it to daily turn on and clear the air in the evening, then slow down to run quietly with lights off through the night and finally turn off mid-morning. Additionally, I set triggers to turn the unit on during the day if the particle per cubic meter readings exceed a limit I chose and then turn it off again once the problem has been dealt with. Typical triggering events might include hair spray, smoke from extinguished candles, or cooking odors circulating through the house. The only time I actually touch the thing is to remove and vacuum the outer surface of the filter every 3 weeks or so. Happy camper so far – about 3 months of daily use.

  48. Anonymous says:

     United States 🇺🇸

    I bought this to help with cooking smells since I don’t have a range hood. I also realized it would help with keeping the air clean when using the wood stove. I have an open floor plan with the large chimney between the two rooms. It does a good job. I like the timer feature. It’s very quiet on its lowest setting. I like the way it shows the air quality. Last week the power went out for a couple of hours, so I lit candles. When the power came back on, I turned on the air cleaner and the candle smells were cleared very quickly. I’m not using the smart features very much, but it’s nice to have. I recommend this product.

  49. Anonymous says:

     United States 🇺🇸

    For some reason, our house is always dusty, even in cold weather when all the doors are closed. We’ve had this unit for only a few days, but we can already tell the difference in air quality in the living room. We just purchased two more of the smaller 300S version, one for the bedroom and one for the garage (where my husband smokes). Very impressed so far.

  50. Mo Harber-Lamond says:

     United States 🇺🇸

    I’ve always had issues with allergies and from time to time my cats. but since I’ve added this filter in my house I no longer get the allergies attacks any longer . At I was using this air filter full blast for the first week now I just have it in auto. I can now also sleep with out waking up stuffed and unable to breathe. Would recommend just make sure you have the proper filter depending of your environment and circumstances.

  51. Anonymous says:

     United States 🇺🇸

    This filter eliminated my itching eyes–cleaned the room air quite well. It has been running constantly for several months with no trouble. I vacuum the filter periodically to keep it clean. Great product!

  52. Anonymous says:

     United States

    Golden Review Award: 3 From Our UsersThe video explained installation before I purchased it. When you frist unbox the unit you have to remove the plastic covering the unit’s filter. There is a sticker on the controls reminding you to do this if you forget.
    The app used to control the air purifier is straight forward so long as you understand you have to give up privacy to use the feature. By forcing you to open an account and link the account to an email address be aware that it will scrape both your email and phone contacts as the price of that “free” software.

    The unit can be controlled with either alexa or Google Home which is nice. Linking the product to these devices is as simple as possible. Use the app to associate with Alexa and press connect on the App. It is that simple. The unit works. Be advised that in high fan speed mode it is noisier than I expected but if you lower the speed it fades into background noise of most homes.

  53. Natasha69U says:

     United States 🇺🇸

    Golden Review Award: 4 From Our UsersThis photo is 2 months after using in a generally clean home with 5 animals! If you are an asthma sufferer or you just want clean crisp air it’s great! DEFINITELY makes a difference in our home! Thank you!!

    This photo is 2 months after using in a generally clean home with 5 animals! If you are an asthma sufferer or you just want clean crisp air it’s great! DEFINITELY makes a difference in our home! Thank you!!

  54. Chris Matyszczyk says:

     United States 🇺🇸

    Update to this review customer service gets an A+ rating from me. They were extremely helpful and friendly resolving any issues I had. After a month the air quality has improved and my wife loves that the dust in the house has decreased. I have pet allergies but own a house dog and they have improved. Only complaint is the price of replacement air filters but they do seem to last a while in my environment.

  55. ArcherServin says:

     Italy 🇮🇹

    un oggetto davvero interessante, fa il suo lavoro egregiamente e in ambiente moderno e con arredamento moderno fa la sua bella figura. Purifica l’aria e lascia un ambiente fresco. Bisogna per stare attenti alle dimensioni. Il 400S davvero un prodotto imponente oserei dire, secondo me, per il mio appartamento da 50 m2 sarebbe stato sufficiente il 300. Decisione personale per. Io rimango soddisfatto e consiglio.

  56. Anonymous says:

     France 🇫🇷

    J’tais plutt sceptique en le recevant, j’habite dans une zone de mauvaise qualit de l’air et il m’indiquait air excellent… Il me l’indique toujours mais aprs avoir ar la maison j’ai vu le nombre de mauvaises particules augmenter. A voir sur le long terme je ne sais pas si c’est psychologique mais une impression de mieux respirer.

  57. Anonymous says:

     United States

    Golden Review Award: 7 From Our UsersThere are a lot of air purifiers/filters on the market with dubious claims about “ionizing” your air, realigning your chakras, whatever. This is a no-nonsense HEPA filter. Levoit may not be the absolute cheapest on the market, but it’s a well-made quality product at a pretty good price. The sensor and display showing indoor particulate quality are nice to help you know whether you really need to run the purifier or not, and it has an automatic feature that throttles the fan speed according to how polluted your air is. The fan is loud on high (pretty much the case with any air filter), but on low the fan is whisper-quiet. I can sleep with it running right next to my bed.

    The downside: replacement filter currently retails for $50. Ouch. Filter can last you a year with intermittent use, but probably only 3 months or less if you are dealing with wildfire smoke, construction dust, etc.

  58. Anonymous says:

     United States 🇺🇸

    Golden Review Award: 3 From Our UsersI do sense the air in my room is cleaner, the device is almost silent, all you hear basically is the air moving, the app is a bit over-rated, it’s just an extension of the control panel on the device, only worthy feature is monitoring the life-expectancy of the filter, which you replace about every 6 months, and they cost a lot so that’s a slight negative. Overall a pleasant experience and hardly any issues.

  59. Anonymous says:

     Italy 🇮🇹

    Ottimo prodotto livello sonoro soddisfacente collegato con app ad Alexa funziona benissimo

  60. Anonymous says:

     United States 🇺🇸

    Golden Review Award: 5 From Our UsersI hesitated to buy this for a while because it’s a lot of money for my single mom budget. But a coupon showed up and my allergies have been worse this fall so I went for it. So happy I did! What an incredible little device. I’m calling him R2 in case you care. The air in my bedroom is noticeably fresher now. And today I cooked bacon so brought R2 downstairs to help. The little guy worked quickly to bring the air quality from “bad” in the high 600’s! back down to very good within 15 minutes. I don’t have an oven vent so in previous bacon days my house reeked all day. Don’t judge it’s ! Anyhow, highly recommend!

  61. GloriaMascorro says:

     United States 🇺🇸

    Had this for about a month now. It works great. You know it’s working because when I burned bacon the air quality was red and it amped up the fan to clean faster. It’s quiet. Love that it locks so my toddler can’t change settings. You do have to be careful when picking it up to move because the bottom can twist off

  62. Anonymous says:

     United States 🇺🇸

    I needed an air purifier that worked for about 400 square feet, give or take, and could handle the work required to purify dog fur- and dander-filled air (not to mention the dirt and dust my critters track around). This air purifier fit the bill perfectly. It’s quiet, the filters last a long time, and the smart features are interesting to use. I can see how much filter life I have left, what the air quality is at any given time, and the history of the air quality for days and weeks. It’s a quality air purifier that didn’t break the bank, and I highly recommend the Levoit brand.