Levoit Core 400S Vs Winix 5500-2 – A Tough Battle! (2023)

Have you ever wondered what makes the Winix 5500-2 and Levoit Core 400S top-notch air purifiers? The answer is simple: extremely high-quality filtration technology, reliability, and numerous advanced features. I must admit I like comparing best-in-class air purifiers, mainly because those are very tough fights where the nuances decide. 

I like that Levoit has plenty of features, such as an air quality sensor that detects dust particles in real-time, auto mode, a Smart app, etc. The Winix also has many features, but its air quality sensor detects only odors and cannot connect to the smart app. The Levoit Core 400S covers rooms up to 403 sq. ft., while the Winix 5500-2 covers slightly smaller rooms up to 360 sq. ft.

Levoit Core 400S Vs Winix 5500-2 - In-depth Comparison
I placed the Levoit Core 400S and Winix 5500-2 side by side.

These two air purifiers use very high-quality filters, which are undoubtedly the most responsible for the exceptional results in performance tests.

Regarding design, I will give a slight advantage to Levoit because it looks more stylish and modern than Winix. The build quality, as well as the quality of the plastic, is okay on both devices.Today’s article will be an in-depth analysis of the Winix 5500-2 and Levoit Core 400S air purifiers. There can only be one winner, so keep reading to find out which one.

Levoit Vs Winix Specifications

Levoit Core 400S air Purifier Winix 5500-2 Air Purifier
Manufacturer Levoit Winix
Model Core 400S 5500-2
Dimensions 10.8 x 10.8 x 20.5 inches (27.4 x 27.4 x 52 cm) 15 x 8.2 x 23.6 inches
Room Coverage (4.8 ACH) 403 sq. ft. 360 sq. ft.
Performance Ratings
Filtration Technology Pre-filter, True HEPA Filter, and Activated Carbon Filter Washable Pre-filter, Washable AOC Carbon Filter, and True HEPA Filter
Filter Replacement Indicator Yes Yes
Filter Longevity up to 12 months up to 12 months
Power 38W 70W
Operating Costs Ratings
Fan Speeds 5 – Sleep Mode, Low Mode, Medium Mode, High Mode, and Turbo Mode 5 – Sleep Mode, Speed 1, Speed 2, Speed 3, and Turbo Mode
Air Quality Sensor Yes Yes
Air Quality Indicator Yes Yes
Auto Mode Yes Yes
Remote Controller No Yes
Smart App Yes No
Display Lock Yes No
Display Off Yes No
Noise Levels 42.1 – 59.9 dBA 40.6 – 66.4 dBA
Noise Ratings
Warranty 2-year 2-year
In-Depth Review Levoit Core 400S Winix 5500-2
Price Check Price on Amazon Check Price on Amazon

Features Overview

Both appliances are highly qualified for a throne in this comparison, equipped with plenty of advanced features. So, without further ado, I suggest we start comparing them one by one.

Air Quality Sensor 

Levoit Core 400S AirSight Plus air quality sensor
Levoit Core 400S AirSight Plus air quality sensor.

Located at the rear part of the Levoit Core 400S, AirSight Plus is a laser dust sensor that detects real-time PM2.5 particles. You can check this information at any moment, either through data displayed on the panel or by using a Smart App. And, as long as you keep your air purifier plugged in, this sensor will keep running. 

Winix 5500-2 odor detection sensor
Winix 5500-2 odor detection sensor.

Contrary to Levoit, Winix 5500-2 has an air quality sensor restricted only to odors. This means it cannot detect general particles, such as dust, pollen, or so. Strictly odors. For this reason, I recommend this air purifier mainly to customers who are active smokers or like to spend a lot of time in the kitchen. Winix can handle it. 

Air Quality Indicator

Relying on the sensor an air quality indicator will light up according to the real-time pollution. Levoit’s indicator can switch colors between Blue-Green-Orange-Red to let you know the current situation. On the other hand, the indicator within Winix has only three colors: Blue, Amber fair, and Red

In both cases, the higher the pollution, the indicator color will get closer to the Red.

Auto Mode

Many air purifiers do not have the Auto mode feature, but Levoit Core 400S and Winix 5500-2 do. Combined with the Air quality sensor, you get an air purifier you can lean on. 

Levoit Core 400S Vs Winix 5500-2 - Controls
These air purifiers have controls located on the top.

What Winix air purifier has is a bit restricting Auto mode that relies on an Air quality sensor. But since sensors can only detect odor particles, this feature will suit you best if you like to spend a lot of time in the kitchen or if you are a smoker. 

Nevertheless, in both air purifiers, the air quality sensor will make the air purifier switch between speeds while running in Auto mode. 

Sleep Mode

Having a Sleep Mode option can be of great aid, for users who like to keep the air purifier working during the nighttime. Good thing both of today’s air purifiers have this feature, and in both cases, this Mode is separate from other fan speeds. 

I’m going to start by saying a big WOW to the Sleep Mode that Winix 5500-2 owns. Incredibly silent, with barely-there lighting indicators, this Mode will make sure nothing gets in the way of your sleep. 

Compared to Winix, Levoit 400S has a bit less silent Sleep Mode, but not in an annoying kind of way. You can leave it running day/night, and you will be pleased with it.

Night Mode

The Night Mode is a bit of an add-on to a Sleep Mode of Winix 5500-2. If you set the air purifier to Auto mode, the appliance will switch to a super-sensitive machine that detects the level of light in the room. It means that in case the room is very obscure in light or completely dark, the Auto mode will switch the Winix air purifier into Sleep mode. This will make the appliance more than adequate for your sleep. 

Plasma Wave

If you take a closer look at the Control panel of Winix 5500-2, you will see a Plasma Wave indicator. Plasma Wave stands for technology used in the air purifying process. Once you turn this option ON all harmful particles will be continuously removed.

Once it is activated, the indicator will light up. No worry for those of you ozone concerned, because Winix is CARB certified, which means the amount of emitted ozone is below the danger line. 


Both Levoit and Winix have a Timer option. If you want the Core 400S to run without interruptions, you can set it within the 12h-range. You can monitor this feature by using either the panel button or the App. At the same time, Winix 5500-2 allows you to choose between 1h, 4h, or 8 hours of continuous running. You should try it.

Smart App (VeSync)

A great deal for most products nowadays is a Smart App connection. One of those products is the Levoit Core 400S. The VeSync App is the Smart app you can use to control this air purifier in a way to monitor all the features and functions this device has installed by default. 

Even though Winix is a great air purifier, it’s still missing this option.

Remote control

Yes, I know, having another remote control on your living room table will probably seem like piling unnecessary things, but this is quite a helpful gadget. If you buy Winix 5500-2, the remote control comes along. It is small, simple, and easy to navigate, and the best thing is you can use it to control almost every single feature on your air purifier. 

Winix 5500-2 Remote Control
The Winix 5500-2 remote controller.

There is no remote control for the Core 400S, but hey, you can use the VeSync App instead

Screen Off

The Screen off option is available only in Levoit Core 400S, and it’s a great feature if you wish to use your air purifier in your bedroom during the nighttime. Once the Screen Off option is ON, this feature will dim all the lights and indicators on your appliance. All except the filter reset indicator.

Lock Screen

The Lock Screen is a protective option, meaning it takes a 3-second finger press to lock/unlock this feature. Once locked, nothing can get in the way of your air purifier. Even if some noisy guest tries to interfere, nothing will happen. The good thing is even if you lock your air purifier, you can still control and use it through the VeSync App. 

Filter Reset Indicator

One of the most advantageous features an air purifier could have is definitely a filter reset indicator. It releases you from the duty of predicting whether and when you should replace the filter in your new favorite device. 

Levoit Core 400S has this indicator built-in, and you can completely rely on it to alert you in due time to replace the True HEPA filter. It usually takes 12 months before replacement. 

Winix 5500-2 also has this feature that alerts for both True HEPA and AOC Carbon filters. The replacement takes place once a year. 


At first sight, the shape difference between Levoit Core 400S and Winix 5500-2 is more than obvious. While Levoit is cylindrical, Winix is more rectangular in shape. Within Levoit, filters follow the shape of an air purifier, hollow in the middle. The air inlets are spread all around the air purifier on the bottom side of the unit.

Levoit Core 400S and Winix 5500-2 fan grilels on the top
Levoit Core 400S and Winix 5500-2 fan grilels on the top.

Once the air runs through the filters, it gets out through the grills on top. Winix, on the other hand, has air inlets on the front side, but on both sides as well. After the air is purified, it gets spread through the holes on the upper side of the air purifier.  


Since both Levoit and Winix are well-known and respectful brands, warranty coverage is available for 2 years within the purchase date. There are no specific conditions regarding claiming your customer rights from Winix. With Levoit you will be way more efficient if you register on their website after you purchase the product. 

Levoit Core 400S Vs Coway AP-1512HH Levoit Core 400S Vs Levoit Core 600S Related comparisons

Filtration Technology

Filters that both Levoit Core 400S and Winix 5500-2 use are quite similar, with the exception that Winix has an extra fourth filter stage. 

The Levoit has a basic 3-in-1 filtration process: Pre-filter, True HEPA, and an Activated Carbon Filter. On the other hand, Winix has a Pre-filter, AOC Carbon filter, True HEPA, and PlasmaWave technology. Let’s go from the start. 

Levoit Core 400S Vs Winix 5500-2 - Filtration Technology
Levoit Core 400S and Winix 5500-2 filtration technology comparison.

Standing on the first line of defense, a pre-filter is an important part of the filtration system. It serves to protect, mainly the second-in-line filter, from all the large particles such as dust, hair, pet dander, etc. Since only Winix has a washable pre-filter, it is highly recommended that you keep it clean by dusting or vacuuming at least twice a month. Preferably, every two weeks. That way you will protect and prolong the life of the following filters.

AOC Carbon filter is available only within the Winix 5500-2 air purifier as its second filtration stage. The good thing is this filter is a pellet-based carbon filter, the number one culprit for outstanding Winix performances in reducing home odors. And the best thing is, it is washable. As for the Levoit, the Activated carbon filter comes as the third and last filtration stage. Being also pellet-based this filter uses Levoit’s exclusive ARC formula, which adsorbs smoke, odors, and fumes but also unpleasant pet smells. 

In my opinion, if you want a good air purifier, make sure it has a True HEPA filter. Both Levoit Core 400S and Winix 5500-2 have this filter, only as different filtration stages. While Levoit uses the True HEPA filter as its core and second stage, Winix has placed it in third place. This filter is responsible for 99.97% of removed airborne particles. 

As for the fourth stage, Winix uses PlasmaWave technology, which I have written about in one of the previous sections, so jump over to see what is it about. 

How To Replace Filters On Both These Devices?

No matter how difficult it may seem, replacing the filters in most air purifiers is a pretty much simple task. 

With Winix 5500-2 all you have to do is to disassemble the air purifier the same way you assembled it after you purchased it. Good vacuuming is always recommended in maintaining the pre-filter, and this stands for all air purifiers. As for the AOC carbon filter and the True HEPA filter, you can easily replace them with new ones, approximately once a year. Maybe even more often, if you really use it. 

Replacing Levoit’s filters is an easy job to do since all you have to do is take out the filter tube and replace it with the new original one – the RF filter. It takes about 12 months before you need to do this, but don’t worry. The filter reset indicator will help you on the way, as well as with the Winix air purifier. 

In case you still need instructions, you can find them in separate reviews. 

How to replace Levoit Core 400S filter? How to replace Winix 5500-2 filters? Filter replacement

Noise Test

We’ve come to the most interesting part of this comparison. There is always something about the speed, even if it’s only an air purifier. Both Levoit Core 400S and Winix 5500-2 have five-speed options, including the Sleep Mode.  

Levoit Core 400S Vs Winix 5500-2 - Noise levels test
Levoit Vs Winix – Noise levels test.

Speaking of the Sleep mode, Levoit is super quiet while operating at this level. However, Winix is even more silent, with only 40.6 dBA. Plus, it is also silent while on the first speed level. 

With speeding up, Levoit tends to get louder, but Winix remains in continuity with being pleasant to the ears. 

As for the last, Turbo mode, things start to change in favor of Levoit Core 400S. This is the maximum speed level, and with a 59.9 dBA, Levoit is way more silent than Winix with its 66.4 dBA

Product Noise Range (dBA)
Levoit Core 400S 42.1 – 59.9 dBA
Winix 5500-2 40.6 – 66.4 dBA

Overall, comparing both air purifiers, the noise never exceeded the tolerance level.  

Performance Tests

Okay, this was challenging. On one side, I had Levoit Core 400S, a member of an air purifier family that never fails and which promises a lot with its standard 3-in-1 filtration system. Opposed to it, on the other side is the Winix 5500-2 air purifier with a 4in1 filtration, including the PlasmaWave technology. Both air purifiers have 5-speed motors to run and prove their durability and good performance. 

Testing the performance of Winix 5500-2 and Levoit Core 400S
Testing the performance of Winix 5500-2 and Levoit Core 400S.

At first, I wanted to test both air purifiers in the same room size, the 320 sq. ft., but then I realized that Levoit can possibly cover an even larger room. So, I decided to give it a try with a 560 sq. ft. room size.

Both air purifiers were subject to a 60-minute long test and here is how it turned out. 

320 sq. ft. Room Tests

Since Winix is designed for a 360 sq. ft. room and Levoit for a 403 sq. ft., this test should have been a peace of cake for each. 

I had Winix tested in two modes, the Auto and the Turbo mode, both accompanied by the PlasmaWave technology ON. While running on Auto mode, Winix improved the air quality by 93%. But, while on Turbo mode, Winix has made even higher results with almost 96% air quality improvement

In a separate test, I had Levoit operating on Turbo mode, and, by the end of the test, the overall air quality improved by an incredible 96%.  

Air Quality Improvement In 320 sq. ft. Room
Levoit Core 400S
Winix 5500-2
0% 100%

320 sq. ft. Room

* Data measuring time is 60 minutes.

560 sq. ft Room Tests

As previously said, I wanted to test Levoit at an even larger room size, which is why I picked a 560 sq. ft. room size. Once the 60-minute turbo-mode test was over, the room air quality improved by approximately 91%.

At the end of the testing, I was more than overwhelmed by the results shown on all tests. However, this is a comparison, and I have to put one air purifier ahead of the other. This time it would be Winix 5500-2, for its amazing performance with a powerful 70W motor. 

Operation Costs

First of all, we have two amazing air purifiers, and it would be silly to expect them to be super cheap. However, the initial product price is not as important as the overall maintenance. To start with, the filter replacement rate is once per year. But, replacing the filter in Winix is far more expensive than in Levoit

Winix 5500-2 Vs Levoit Core 400S motors comparison
Winix 5500-2 Vs Levoit Core 400S motors comparison.

Last, but not least, comes the monthly electricity cost. Compared to a 38W motor that Levoit Core 400S has, Winix has doubled it to a 70W. That means if you leave both air purifiers running on Turbo mode for a whole month, day and night, Winix will give you a 5$ bill, while Levoit only 3$.

Product Wattage Range (W)
Levoit Core 400S 0.9 – 35W
Winix 5500-2 3.7 – 57.9W

At the end of it all, I find that the Winix is a far more expensive appliance to own. Levoit’s costs are reasonably lower. 

Winix 5500-2 Vs Levoit Core 400S Video Comparison

Which One Does It Better?

As I mentioned earlier in the intro, this is a tough battle in which nuances decide the winner. Before announcing the winner, I would emphasize that whatever air purifier you choose, you won’t make a mistake.

However, as a better buying option and an absolute recommendation, I pick the Levoit Core 400S air purifier. The reason for this decision is that Levoit has so many advanced options, smart app option, an air quality sensor that detects dust particles in real-time, and because of more affordable maintenance.

I can say that these devices are almost equal when comparing all the other parameters.

If you have any questions regarding the Winix 5500-2 or the Levoit Core 400S, don’t hesitate to leave a comment in the comment box below.

18 responses to “Levoit Core 400S Vs Winix 5500-2 – A Tough Battle! (2023)”

  1. Catheirne


    Thank you for all the review that is super super helpful. I have the same issue.
    I have a similar problem, I suspect my neighbours smoke in the bathroom and we share a dry wall. I said I m not sure because the smell of smoke went away in the past month but the PM2.5 still spike at night when they are home .

    It’s in my Kid’s room and bathroom 😭. Our Winix sensor can’t detect it but the PM2.5 and 10 Went up to 30-100 at night. Would you recommend levoit 400 or 600?

  2. Rika

    Hi Milan,

    I stumbled into your website as I am torn between Levoit 400s and Winnix Zero 360. I was leaning toward Levoit 400s, also with the same reason you pointed out: smart app, smart sensor. Now Winix Zero 360 also have that feature. I don’t know which one to choose. I’m from Jakarta so, options are quite limited.

  3. Jennifer

    Hi Milan, thank you so much for your thorough and helpful review. Which in your opinion would be the best air purifier for wildfire smoke?
    Thanks so much for your time!

    • Milan Antonic

      Hi Jennifer,

      I believe you are one of many facing wildfire issues these days. I’m truly sorry, and I hope this mess will be gone soon.

      Regarding your situation, I recommend the Winix 5500-2 as it has a better carbon filter. Anyway, both options will do an excellent job of neutralizing wildfire smoke.

      Please feel free to ask if you have more questions.

  4. JED

    Great reviews and very accurate information! As an owner of the Winix 5500-2 in Canada, I compared replacement filter costs on Amazon for both machines. Today I found that replacement filters for Winix 5500-2 (activated carbon pellets 1filter and HEPA for 2nd filter) The 2 filters are sold together on Amazon today for CAN.33.99! The replacement for the filter cylinder for the Levoit Core 400S is CAN 85.99 on Amazon today…this includes HEPA, carbon, refilter all together. Assuming filter replacement for both units at once a year…clearly the Winix is more affordable to maintain. Your pricing on the filters seem inaccurate

    • Milan Antonic

      Hi Jed,

      You are partially correct, but the CAN 33.99 filters are not genuine and come from third-party sellers. That’s the difference. There are also cheaper filters for the Core 400S, but these are from third-party sellers as well.

      I recommend using only original filters; however, this doesn’t mean that third-party filters are necessarily bad.

  5. Tori

    Hi! Which one is better for removing odors from home? My condo has poor ventilation so when I cook, it makes the whole places smell like whatever it is that I prepared. I have the Winix currently and I run it as I am cooking, but I still feel like the place smells like food. Also, which do you think is better to safeguard against cigarette/cigar smell? My next door neighbors are heavy smokers and sometimes it wafts into my unit.

    • Milan Antonic

      Hi Tori.
      The Winix 5500-2 is definitely better for odor, but you must know that the activated carbon filter has its limits, so if your place is extremely heavily polluted, then you will need to replace the filter more often. Apart from that, I suggest washing the Winix 5500-2’s carbon filter, as it is washable.

      Hope this will help!

      Please be kind and share your feedback after washing the carbon filter.

  6. Maria

    Hello! Does the Levoit work with the smell of a fireplace?
    Greetings from Greece!

  7. susan

    Hello Milano,
    I’d like to ask for your advice. I’m torn between choosing the Levoit Core 400S or Core 600S vs Winnix Zero Pro. I’m from S.E Asia, so the Winnix 5500-2 is not available here. Between the three above, which one I should choose? I have 3 cats, so i really want to ensure that I have a fresh air circulated sans the fleeting furs and the foul odors. Winnix product has the PlasmaWave feature that other competitor dont have. What do you thing regarding this, is this PlasmaWave technology that important or we can just omit that? What is your best advice?

    • Milan Antonic

      I don’t think the PlasmaWave is a crucial feature, and I think an air purifier doesn’t need to have it. For your specific query, I would choose the Winix Zero Pro as it has a washable pre-filter, which is extremely practical for your situation (having three cats).

      The next choice would be the Levoit Core 400S, which won over the Winix 5500-2 in my comparison and is the best equivalent to the mentioned Winix.

  8. Richard

    Hello Milano,
    Congratulations on your superb website, it is really complete and very useful. You say the Levolt 400s is less expensive to maintain than the Winix5500-2 but since the Winix pre-filter and carbon filter are washable, the Winix should be less expensive to maintain. is not it?
    I search a purifier for humidity odor. What is your recommendation between Levolt and Winix?
    Thank you Milan

    • Milan Antonic

      Hi Richard,
      Thanks for your kind words!

      Yes, you are right, the Winix 5500-2 pre-filter and activated carbon filter are washable. But, even though the carbon filter is washable, you need to replace it approximately every 12 months. What’s more, the replacement filters for Winix are more expensive than for the Levoit. Additionally, the Winix is a huger power consumer than the Levoit.

      Hope this helps!

  9. Leah

    Our nextdoor neighbor (we live in a condo) smokes cigarettes inside his unit. In the summer when it’s hot and more humid, the smell of stale cigarettes wafts into our unit. Which of these would you recommend to help with the odor and hopefully removing dangerous particles? (I already have a Coway Mighty, and it is great but doesn’t quite get all the odor out). Thanks!

    • Milan Antonic

      I would go with the Winix 5500-2, as it has a pellet-based carbon filter, which is also washable. It will definitely do a better job than the Coway, which has a fibrous filter coated with carbon (less efficient than a pellet-based one).

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