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Levoit Dual 200S Humidifier Review – Purchased & Tested!

Air Smartly Verdict

Affordable, modern, smart, and top-fill, this Levoit dual 200s humidifier is one of the best cool mist humidifiers we have tested. We are amazed that we can get such an advanced humidifier at this price range.

Why you can trust this review: I purchased this Levoit 200s humidifier with our own money, took pictures, and spent two weeks testing it for its noise level, output, and humidification performance.

Levoit has become a household name in both the humidifier and air purifier industries. Many of their humidifier models are popular in the market, and this 200s one is one of them. 

Let’s start to explore the features, pros, and cons of this Levoit dual 200s humidifier!


What we like  

  • Beautiful look.
  • Easy to fill – top-fill design.
  • Quiet operation.
  • You can control it with google home or VeSync APP.
  • It can be used as a diffuser.
  • Affordable price.

What we don’t like 

  • Not recommended for large rooms.
  • The reading of the built-in humidistat is not accurate.
  • No nightlight included.

Levoit dual 200s humidifier specs:

Mist modeLow, High, Auto
Noise level(based on our test)33 dB on high, 32 dB on Low
Size11.8″H x 7.1″W x 7.1″D
Capacity3 L
Weight3 lbs
Coverage290 sq. ft.
Output(based on our test)147ml on high
Filtered or filterlessFiltered

Modern, sleek, and compact design

Levoit Dual 200S Smart Cool Mist Humidifiers

While humidification performance is essential, aesthetical value is also important when choosing a humidifier.

Personally, I like the design of this Levoit 200s humidifier very much. The combination of a semi-transparent water tank and a white base is so simple and sleek that it can blend seamlessly with any decor. You no longer have to worry about color matching.

With a size of 11.8″H x 7.1″W x 7.1″D, its footprint is small, allowing you to put it on any table you want. Even better, based on our observations, it will not get everything wet.

In front of the base, there is a small rounded display with two buttons on either side – one for power and the other for mist level. If you don’t want to explore other functions, you can simply use the mist level button to switch between low, high, and auto settings.

Levoit Dual 200S Humidifier Review-app design

The display will show you the humidity level, mist level, no water indicator (red), and if it is connected to the APP. The light of the display can be turned off through your mobile phone.

It is worth mentioning that this model doesn’t come with a nightlight. 

Levoit dual 200s can be controlled by an APP

The dual 200s is a smart humidifier, even if it comes with a low price tag.

Levoit has developed an APP for controlling their products called VeSync.Once you connect this 200s humidifier to it, you can turn it on/off and choose the mist mode via your phone. 

Levoit Dual 200S Humidifier Review-app control
Levoit Dual 200S Humidifier Review-app control2

In addition to that, you can set the target humidity level from 30% to 80% in auto mode and create a schedule or timer.

Levoit Dual 200S Humidifier Review-app control1
Levoit Dual 200S Humidifier Review-app control4
Levoit Dual 200S Humidifier Review-app control3

After trying out various smart products, we found that not every APP is easy to use. But this VeSync app is well-developed, and you can get the hang of it quickly. 

However, throughout our test, we found that the reading of the humidistat is not so accurate. Sometimes it would be a bit higher or lower. You can’t expect it to maintain the humidity level at a specific number you want. 

This model is also compatible with Alexa and Google Assistant.

Top-fill design – we love it!

Levoit Dual 200S Humidifier Review-top fill

Changing the water every day is recommended to prevent mold and bacteria growth, even though many people don’t follow the instructions. 

But anyway, refilling the water is something you have to do often when running a humidifier. 

While putting the water tank upside down and filling the water is not a big deal, having a humidifier that can fill from the top can save you a lot of effort in the long run.

By removing the big water tank cover, you can directly add water to this humidifier. Just ensure the water doesn’t get into the mist tube in the middle.

We have put it in our list of the best top-fill humidifiers

You can add essential oil to the base chamber

Levoit Dual 200S Humidifier base

In most cases, you can’t put essential oil in a humidifier. But you can do it with this Levoit humidifier. 

As per our experience, most humidifiers that claim to have a diffusion feature will have an oil tray, but you can directly add essential oil to the base with this 200s model. Another model we found that has the same function is the Homech HM-AH004 humidifier.

It works just as well as a standard diffuser. But we recommend you clean it more frequently in this case.

Our performance test 

Although this Levoit dual 200s has many great features, we still have to examine its performance. Overall, it is a good humidifier for small to medium rooms.


levoit 200s humidifier output comparison - 1

We use a scale to measure the weight difference of the humidifier before and after one hour so as to calculate the output of this Levoit 200s in high mode. 

After calculating, we’ve determined that this model has an output of 147ml, which places it in the middle range among all the humidifiers we’ve tested. Since the water capacity is 3L, it can continue to work for 20 hours in high mode. 

Humidification performance 

Levoit Dual 200S Humidifier humidification performance

We also put it in our test room which is 15m² (160 sq. ft), to assess the humidification performance by using a smart hygrometer from Govee.

As you can see, the humidity increased from 42% to 49.6% in our hour. You can see it does make some difference quickly in a small room. It is not as powerful as some powerful ones, such as Vorndao EVDC500, but it is powerful enough for small to middle-sized rooms. It could be a suitable humidifier for cough relief in small spaces.

Noise level (0.5m away from the humidifier)

As you know, ultrasonic humidifiers usually make less noise than evaporative humidifiers. This Levoit will not let you down, either. 

We recorded the noise level in high and low modes, and the following is our result.

ModeSound Level
Low32 dB
High33 dB

Whatever mode you choose, its operation will not disturb you. 


For the initial setup, all you need is to remove all packaging, rinse all the parts, find a flat location, fill the water, and connect it to the power source. 

It comes with an extra water filter and a small brush for cleaning.


To prevent any bad smell in a humidifier, we recommend emptying the tank and base chamber daily and cleaning every part once a week.

If possible, use distilled water or purified water. Otherwise, you must clean the mineral deposit in the tank and base more frequently. You may also see the white duct coming out from it.

Note that the water filter of this Levoit humidifier is different from the filter in evaporative humidifiers. It is located on the button of the water tank and is easier to get cleaned.

levoit humidifier filter

By the way, the price of the filter replacement is much lower than the wicks in the evaporative models. Buy on Amazon


Like most Levoit humidifiers, this 200s model has a 2-year warranty. Their customer service is responsive. 

Who should buy this humidifier?

Whether you are looking for a humidifier to relieve coughs or improve dry skin, this Levoit dual 200s could be a good choice. You can get most of the advanced features at a low price.

I would recommend the Levoit dual 200s if you’re looking for the following features in a cool mist ultrasonic humidifier:

Want a humidifier for a small or middle-sized room: Keep in mind that the output of this humidifier is 147ml (according to our test), making it not a suitable option for large rooms. The recommended coverage is 290 sq. ft., and this model works great in our test room (160 sq. ft).

Want a smart humidifier: You can control this model via your phone. It can work with Alexa, google assistant, and its own VeSync APP. In this way, this humidifier can turn on and off automatically as per your order. 

Want to fill the water from the top: Once you decide to use a humidifier, you need to refill it frequently. This 200s model has a big top cover to fill the water from the top. It can save you a lot of effort.

Want a diffusion function: Levoit dual 200s humidifier is compatible with essential oils. You can add essential oil into the base chamber so as to reap added benefits for relieving coughing or sore throat.

Hope this Levoit dual 200s humidifier review from Airsmartly can help you out!

Last update on 2023-12-04 at 06:34 / Affiliate links / Images from Amazon Product Advertising API

About The Author

Avatar photo

Liz Yang is the founder of Airsmartly. She has been working at home for a few years and realizes that the performance of the HVAC system plays such an important role in our life. She has tested dozens of products in person, like humidifiers, air purifiers, dehumidifiers, and ACs, and wants to share tips about using or troubleshooting these products with you. Her uncle is an HVAC expert with over 30 years of experience in the field, and often offers assistance when she is unsure how to handle a situation. He is also in charge of reviewing the articles on this site.

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