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The Best Warm Mist Humidifiers in 2021

The point of warm mist humidifiers is to add soothing moisture in dry cold weather. So if anyone suffers the dry and cold indoor air, the best warm humidifiers should be what you need.

Best Warm Mist Humidifiers

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For those who are suffering allergies due to dry weather and dehydrated skin, itchy skin, and rough lips, a warm mist humidifier could benefit them a lot. It helps to spread the steam throughout the room by breaking down the water to add mist to the air, allowing you to sleep soundly.

Today, we have a list of the best warm mist humidifiers with comprehensive reviews below. We believe you will get everything you need to know after reading our article.

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Top 5 Best Warm Mist Humidifiers

1. Honeywell HWM-705B Filter Free Warm Moisture Humidifier

Best Overall
Honeywell HWM-705B Filter Free Warm Moisture Humidifier

Honeywell HWM705B made its leading way on our list due to various reasons.

Initially, the product stands out with ultra silent operation without filter, producing a visible and soothing warm mist in order to make your rooms more comfortable. Plus, it will win your heart due to the ability to help counteract the dryness as well as harsh air in the winter by providing necessary moisture to the rooms.

Well, it is worth noting that this option is perfect for medium-sized rooms. With a one-gallon water tank, the warm mist humidifier could help add mist to the indoor air in up to one day.

Not to mention, it also impresses us with a medicine cup that is used with liquid inhalants. This feature is hardly found in other models in the same range.

Furthermore, the product features two settings – high and low, along with a reset indicated light that will show when the filling is needed.

Additionally, the humidifier could provide a humidity level of 40-60 percent to your house, making the air warmer. Thereby, you could get improvements in the comfort of your breathing, nasal congestion, dry skin, and sleeping.

You know, dry air could result in static electricity, in addition to damage your furniture made of wood and irritate various health issues.

Another point, making this product beat other models, is that it comes with easy-to-use manual precise knob control, enhancing users’ experience.

Though it is equipped with numerous outstanding features, the humidifier is available at a very competitive price. That’s also one of the reasons why we consider it the best-overall humidifier at all. It is safe to say this machine is totally a good bang for your buck.

In a nutshell, should you seek an excellent warm mist humidifier for your medium-sized rooms, this Honeywell model might be the ideal one for you. We do not have any complaints about its performance. Yet, if you want to buy a machine for large-sized spaces, it would be best if you consider other options.

2. Elechomes UC5501 Ultrasonic Humidifier

Best Quality Warm Mist Humidifier
Elechomes UC5501 Ultrasonic Humidifier

The runner-up position calls the name of the Elechomes UC5501 humidifier. This product can act as both a cool and warm mist humidifier so that you could use the machine at any time of the year for a cozy and relaxed indoor air.

Plus, it is an ideal choice for large rooms thanks to a big 6-liter water tank and 360-degree dual rotating nozzles. We are really impressed with its capacity to humidify the space of up to 750 sq ft.

Furthermore, you will love this product as it does not require to refill the tank frequently. You know, each filling could last 40 hours of consistent work.

Moreover, it also outweighs other rival products for babies, women, and plants. The reason lies in the fact that it makes users inhale much more comfortably and achieve tenderer and moister skin. Plus, the Elechomes UC5501 is able to balance the indoor air quality for the rooms of your babies, which allows them to sleep more soundly. You could even put the machine in your garden as it could assist your plants to be thriving.

Another different point of this humidifier is that it comes with a smart humidity sensor that could automatically adjust the humidifying strength to meet the requirement you set.

Similar to the first option, this humidifier also comes with quiet operation with sleep mode. With this product, you will not need to worry about the noise released by the machine, along with the LED light when you are taking a snap, working, and studying. Whenever you turn on this mode, it will run below 34 dB with a turned-off LED screen. We are pretty sure that you will forget its presence.

That said, we find that this humidifier sometimes leaks, which is definitely a letdown for us.

3. Elechomes SH8820 Top Fill 5.5L Humidifier

Best Warm And Cool Mist Humidifier
Elechomes Warm and Cool Mist Humidifiers, SH8820 Top Fill 5.5L Humidifier for Large Room Bedroom Plants with Remote Control, 20db Ultra Quiet, LED Display, 600ml/h Max Humidity, Auto Shut-off, White

The next spot also belongs to another name from the manufacturer Elechomes – the SH8820 humidifier. Unlike the above options, this machine requires an alternative filter. You could easily search for the filter for this model and install it to reduce white dust for cleaner air.

The product comes with excellent cool, and warm mist settings. While in the summer, the machine could keep your skin moisturized and your body cool, it helps to soothe scratchy throats and unclog sinuses in the winter.

Another notable highlight of the Elechomes SH8820 is that it comes with a top filling water tank. Thereby, you could directly fill it from the top with no disassembly, which is quite ergonomic and convenient. In other words, all you need to do is just open the top cover and pour.

This machine also allows you to put in the bedroom thanks to its whisper sleep mode. As it comes with a breakthrough ultrasonic cool mist tech that generates noise at only 20-32 dB, you will not be worried about being irritated by the sound created by the machine. Not to mention, similar to the runner-up option, it also features the screen-off setting. Well, you could rest assured about a guaranteed peaceful sleep at night.

Last but not least, this humidifier is also a great choice to add moisture to large-sized rooms. Thanks to its big 5.5-liter water tank (a bit lower than the Elechomes UC5501), you will not have to refill it frequently. Notably, it could provide a coverage of up to 755 sq ft with a humidity level of 40-60 percent. This figure will ensure that the flu risks will be significantly controlled.

Any cons? We would say YES to this question. You could see this machine is quite bulky and big, so that it is challenging to move around in your rooms and house. Moreover, it occasionally stops working with no reason, which is a minus point in its overall performance.

4. TaoTronics TT-AH018 Warm and Cool Mist

Best Warm Mist Humidifier For Large Room
TaoTronics TT-AH018 Warm and Cool Mist

We consider the TaoTronics TT-AH018 as the best warm mist humidifier for large rooms. The reason lies in the fact this machine could work up to 45 hours with a single fill thanks to a 5.5-liter water tank and dual 360-degree rotating nozzles.

Plus, it features three temperature settings for use in the winter. Of which, the mist temperatures could reach 60 degrees Celsius. Notably, you could even personalize the settings by adjusting mist output, along with mist temperatures and humidity.

Also, this TaoTronics humidifier impresses us with a convenient timer. Thereby, you could set the specific time you want, and the machine will turn off automatically at this point of time.

This machine is also an ideal selection for those who are suffering cough and congestion caused by allergies and colds by offering temporary relief. Thereby, you could inhale more easily wherever you are.

Another plus point of this model is that it could moisturize the indoor air at such a low noise level of below 35 dB, creating a quiet environment to make sure you could get a sound sleep.

Besides, it is worth noting that the manufacturer also equips this model with an automatic humidity monitoring feature. Accordingly, the machine, with an in-built humidistat, could detect the humidity level in the rooms and then adjust automatically to maximize the comfort.

This warm mist humidifier also outweighs other models with the ability to save the previous mode. And in case you want to change it, you only need to reset it manually.

Nevertheless, there are still three reasons why it does not rank higher on our list. First, it comes with a quite high price tag in comparison with other products with similar features. Second, it also lets us down as its water tank leaks sometimes. And last, its hygrometer does not read properly as well.

5. LEVOIT Humidifiers for Large Room Bedroom

Best Warm Mist Humidifier For Bedroom

Our last pick is a product from the famous manufacturer LEVOIT, the LV600HH. If you are into the market for a humidifier, particularly for your bedroom, you could consider this option.

The first thing we would say about this machine is that it comes with an ultra-quiet operation with a screen-off feature. Thereby, you could rest assured of having a deep sleep at night. Not to mention, the product also helps you to relieve congestion and allergies, along with moisturizing your skin. Accordingly, you could awake refreshed after sleeping soundly.

This model is also equipped with both warm and cool mist settings. While the warm mist kills bacteria in water and quickly humidifies your rooms, the cool mist keeps your skin and sinuses hydrated in the summer.

And it is also a perfect choice for big rooms as it could handle large spaces of up to 753 sq ft. This is thanks to a big 6-liter water tank that provides consistent use in 36 hours at a low mist setting.

One more thing, if you wake up at midnight as you want to set the humidifier again, you will not need to leave your bed. Just hold the remote control and then adjust the settings. Or you could set a timer in 1-12 hours; thereby, you will not be worried about leaving the machine on accidentally.

Another different point of this model from the humidifiers, as mentioned earlier, is that it also has an essential oil diffuser. Thanks to that, you could add your favorite essential oil to provide your rooms fresh smelling fragrances. Yet, you should keep in mind not to add the oil into the tank or base because this will badly affect your humidifier.

That said, this product has several points that need to be improved. We find that some buttons on its face do not work sometimes. Plus, it is quite difficult to clean as there are multiple parts to disassemble and soak. Also, it requires much effort to reach nooks, pockets, and corners. Therefore, it could take you up to 30 minutes to clean the machine and 1 hour to soak its parts entirely.

Who Makes The Best Warm Mist Humidifiers?


Honeywell is a U.S-based business specialized in manufacturing industrial products, dehumidifiers, engineering services, and especially aerospace systems. This is a reliable name considered one of the world’s Fortune 100 companies. The manufacturer possesses many popular brands that you might recognize, such as Garrett turbochargers and home thermostats. Moreover, the company also introduces air cleaners, security alarm systems, and sensors. It is said that it licenses the brand name for use in a series of retail products provided by other producers such as fans, air conditioners, home generators, heaters, and so on.


Elechomes is an established high-end producer of intelligent home appliances, offering a breakthrough lifestyle upgrade for better health, comfort, and wellbeing. It is renowned for various award-winning tech achievements like Thermospread tech and Decade Katana titanium-made blades.

Its value is defined by both versatile technology and quality craftsmanship. It puts its attention on the manufacture of humidifiers, kitchen appliances, air purifiers, and other products for both babies and parents. After years of development, Elechomes has gained much consumer loyalty thanks to quality products and customer services.


Another giant in the home appliance segment is LEVOIT. This US-based company outweighs other competitors in the same industry, thanks to fantastic product design and innovation. By introducing durability, functionality, beautiful design, and versatility in each product, it has been trusted by a bunch of customers worldwide. Notably, it has become more popular with award-winning air purifiers that are highly evaluated by customers.


TaoTronics is a leading brand under the management of the Sunvalley Group. It focuses on various industries such as audio, home appliances, and lamp. With the commitment to give customers using experience that they hardly find anywhere else, the company always strives to introduce the latest tech into their devices.

What are the Advantages and Disadvantages of Warm Mist Humidifiers?

So you have known our best warm mist humidifiers. Yet, do not immediately quit the tag! We are going to share with you several helpful details as follows. They will provide you a better view of warm mist humidifiers, and then you could make the right buying decision in the end.

First, let’s take a look at the pros and cons of a warm mist humidifier.


  • Can kill bacterial and different harmful microorganisms
  • A perfect solution to nasal congestion as the warm mist is able to penetrate the thin and mucous membrane easily
  • Act as a diffuser with essential oils to improve sleep, ambiance, and mood
  • Relieve cough and other respiratory problems
  • Quiet operation due to not using a fan


  • Hot water and emitted steam are potential risks to children and pets
  • High energy consumption

What To Look For When Purchasing A Warm Mist Humidifier?

The following factors are vital features that you should take into consideration when choosing warm mist humidifiers.

1. Coverage area

The first thing you should do before making a buying decision is to determine your room size. This will help you buy the right product that could provide enough power to humidify your rooms. All manufacturers list their products with designated coverage area to make sure you will buy the right one.

2. Water tank

A big water tank will lengthen the time the humidifier runs without needing to refill. The bigger the tank is, the less time and effort you have to spend on refilling it. One thing we want to note is that the tank size will directly affect the unit’s overall weight, especially when it is full.

3. Runtime

This factor refers to the time length that your humidifier can function on a full water tank without refilling. Obviously, a big water tank will keep the machine running for a longer time.

Other elements that have an impact on runtime are the speed and moisture output. Accordingly, high speed will deplete the tank faster and reduce the total runtime.

4. Noise

We are pretty sure that you will not want to be awakened up by the sound generated by your humidifier. That’s why, before making the final decision, you should check the product in question, whether it comes with the silent operation or not. Commonly, it is recommended to buy a humidifier that only generates a noise level of below 36 dB.

5. Weight and Dimensions

It is essential to know the size of the humidifier as it will help you get whether it will fit the space in which you plan to install the machine. Besides, if you want to move your humidifier around the rooms or house quickly, you need to think about lightweight options.

6. Warranty

The warranty period will somehow show the confidence of the manufacturers in their products. Plus, it will help you rest assured of using the machine.

7. Adds-on

  • Timer: This feature will allow you to set the preferred duration of humidifying to save energy.
  • Auto shut-down: This could prevent fire accidents and damage when the water tank is empty.
  • Humidistat: Along with detecting existing humidity levels in your rooms, an in-built humidity sensor will automatically adjust the output of moisture to enhance and optimize the moisture to a desirable level.
  • Adjustable speed: It will provide you flexibility in managing the moisture output and enable you to select a low rate to boost runtime and limit noise and power consumption.
  • Filters: Though filters help purify the air and prevent clogging of the machine, they will add additional costs for replacement. Therefore, if you want to save money, you should go for filter-free humidifiers.

Maintenance and Care of Warm Mist Humidifiers

It is essential to keep your humidifier clean to avoid popular humidifier issues and to prevent the development of germs and other organisms. To do this, you should rinse the water tank frequently to remove any residue. You could mix a one-fourth cup of white vinegar to a cup of water and pour the mixture into the water tank.

Besides, you should watch your kids and pets for a safety concern. Even when most warm mist humidifiers come with auto shut-off mode, it can still be burned when the machine is turned over due to the heating unit.

It is also worth noting that before filling the humidifier, you’d better unplug the unit, especially if the water tank can’t be removed. Plus, you should keep in mind to keep the cords free of walkways, which is probably a fall hazard. Moreover, it is also necessary to keep cords out of the pets’ reach.

One more thing, if the machine’s using steam for adding moisture to the air, not put the running machine too close to your kids.


Is a warm mist humidifier safe to use in houses with kids?

Well, as mentioned above, warm mist machines come with heating elements to boil the water before emitting it into the atmosphere. Therefore, it could pose potential risks to kids. Make sure you watch your children not to tilt it because it can cause short circuits and spillage. However, as it is sealed compactly inside the unit, it will not damage anyone if being used properly.

What are the pros of getting filters in a warm mist humidifier?

Filters remove impurities from the atmosphere and trap mineral deposits and particles that can clog the machine.

How does a warm mist humidifier work?

A warm mist humidifier will make use of its heating unit to boil water and release steam. Also, it can warm the air in your rooms slightly in the procedure.

What is the ideal humidity level of a humidifier?

We recommend you to set the level of humidity in the range of 40-50 percent.

Final Thoughts

So we have given complete reviews of the best warm mist humidifiers on the current market. In a nutshell, before making the final decision, you should consider key factors such as room size, warranty, noise, cost, and many other features.

If you have already made up your mind for any humidifier, we hope you will have a great time with it. On the other hand, if you are still confused about products, we suggest you buy the first option – Honeywell HWM705B warm mist humidifier. Not only does it come with an excellent performance in humidifying your rooms, but it also has a competitive price tag. It is safe to say this option is definitely a good bang for your buck.

Ultimately, if you have any other suggestions, please feel free to let us know in the comment box below.

Thank you for reading!

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