Best Humidifier For Large Room 2022 (Top 10 Picks)

We tried multiple humidifiers from different brands for our living room (quite big). Below are our top 10 picks for helping you make a good decision.

Humidifier adds moisture to dry air and saturates the air, and come in different sizes and types.

The warm mist humidifier uses steam to moisturize the air, and the heating process eliminates the moisture and bacteria.

On the other hand, the cool mist humidifiers are quieter, and they draw air via a moist filter that saturates the air.

We have reviewed the top best humidifier for a larger room that can increase the moisture in the air and maintain humidity.

Best Humidifier For Large Room (Top 10 Options):


Tank Size

Area Coverage


LEVOIT Humidifiers

1.5 gallon

753 sq. ft.

AIRCARE 831000

6 gallon

2700 sq. ft.

Honeywell HCM350B

1 gallon

400 sq. ft.

Vornado EV100

1 gallon

300 sq. ft.


3.6 gallon

3600 sq. ft.

Vornado Evap40

4 gallon

1000 sq. ft.


1.32 gallon

570 sq. ft.

Venta LW45

3 gallon

600 sq. ft.


2 gallon

1200 sq. ft.


3.5 gallon

2400 sq. ft.

1. LEVOIT Humidifiers

The first on our list is Levoit LV600HH hybrid ultrasonic humidifier. This unit perfectly fits a medium to the large-sized bedroom.

Not to mention, the design and structure of this humidifier are stylish, and you can also consider this as modern home decor. 

Also, this product supports a 1.5-gallon tank; even if you leave the humidifier running for more than 18 hours, you do not have to worry about the water supply.

It is a cool-mist humidifier; no need to worry about the operating noise. 

In addition to this, you can turn off the display at night if you have issues with the brightness on the panel.

The humidistat feature of this unit targets the humidity level and maintains it throughout.

Also, you do not need to stand up to operate the humidifier; it comes with a remote. 

Highlighting features:

  • This humidifier is a combination of both cool and dry mist.
  • The auto mode adjusts the humidity level.
  • The humidifier will automatically turn off when the tank runs out of water.
  • This unit can handle spaces as large as 753 square feet.

This humidifier can cover an area as massive as 753 square feet.

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2. AIRCARE 831000

Next on our list is Aircare 831000; this unit is a heavy-duty humidifier designed especially for extra-large rooms.

Even if you plan to locate this humidifier in an open plan living layout, consider this a perfect choice. 

Not to mention, Aircare can cover spaces as large as 2700 square feet. The 6-gallon tank capacity allows you to run this unit for more than 65+ hours.

Moreover, you do not have to worry about refilling the tank; the reservoir feature has a wide opening, and the refilling is pretty straightforward.  

Highlighting features:

  • The maximum run time is 70 hours.
  • The tank capacity is 6 gallons.
  • This unit can cover spaces as large as 2700 square feet.
  • The caster wheels located at the bottom make it easier to place.

Compared to Levoit, this unit is a bit more professional, and the coverage area is also four times more than Levoit.

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3. Honeywell HCM350B

Honeywell HCM350B is an evaporative humidifier that runs without any operating noise. Not to mention, this unit is suitable for areas as large as 400 square feet.

Moreover, you can keep this humidifier in an open space area, as it humidifies the air quickly and maintains a comfortable moisture level. 

Most importantly, you can clean the removable parts of this humidifier in your dishwasher.

However, this model cannot over humidify the air, just like ultrasonic humidifiers. As compared to Aircare, this unit can be considered small. 

Highlighting features:

  • This unit adds excellent moisture to the air without making any noise.
  • The 1-gallon tank is suitable for up to 24 hours.
  • This unit helps in improving air circulation and also saves energy.
  • It can cover a space as massive as 400 square feet.

Also, the only complaint that we have about HCM; it requires a wick replacement every 3-4 months.

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You might like: Best Padestal Fans

4. Vornado EV100

Next on our list is Vornado EV100. It is an evaporative humidifier that prevents over-humidification. We are indeed impressed by the functionality of this unit, as it maintains the humidity level for hours. 

Moreover, you can also set the fan’s speedhigh, low, or auto. In addition to this, Vornado can dial into specific humidity levels, but the ideal humidification range of this product is 40% to 60%.

The touch system is commendable; you can also use the three-notch dial to operate the humidifier. 

Highlighting features:

  • The 360-degree air intake feature circulates fresh air.
  • Customizable humidity control buttons.
  • The design and structure are user-friendly.
  • It can cover a space as massive as 300 square feet.

However, this unit is not dishwasher safe, and it also makes a lot of noise.

But, this humidifier is perfect for medium to large rooms as it covers an area of 300 square feet.

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Fifth on our list is Aircare MA1201—a heavy-duty multi-room humidifier covering an area of 3600 square feet. As compared to Aircare 831000, this unit is a more advanced version.

We would recommend you to locate this humidifier in a larger area, or it can also cover your entire house. 

The massive 3.6-gallon tank allows the humidifier to run for a good 36 hours.

However, this humidifier is quite heavy; but, here is a catch—it comes with a wheel on the base.

Aircare gives you four different fan speed options and easy to read digital display. 

Highlighting features:

  • The digital humidistat maintains the desired humidity.
  • This unit can cover an area of 3600 square feet.
  • Easy to clean, and no need to replace the wick every few months.
  • Automatic operating features make the operation easy.

Not to mention, you can set your target humidity.

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6. Vornado Evap40

Next on our list is Vornado Evap40; the performance of this unit is indeed commendable. No waking up with a stuffy nose and scratchy throat.

Moreover, this evaporative humidifier keeps the air clear and moist. Not to mention, the company is known for air-improvement appliances. 

One of the features that we loved about this product; it distributes moisture through the air.

In addition to this, Evap40 pushes air into spirals; the circulation method provides complete coverage. You can also customize the air flow and set it as per your preference. 

Highlighting features:

  • Easy to refill the tank.
  • This humidifier covers up to 1000 square feet.
  • Automatic humidity adjustment feature.
  • The water saturates the wick of this humidifier in the reservoir.

The spinning option is as low as 750 RPMs and as high as 1600 RPMs.

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7. PureGuardian

Run-time is the main factor that most people consider while buying a humidifier. Pureguardian humidifiers have the most extended run-time as compared to Levoit or Aircare. 

Moreover, this unit is a 2-in-1 humidifier that produces cold and warm air.

However, it cannot cover as much ground as Levoit; and the rating is 570 square feet. Not to mention, the average gallon tank is 1.32. 

However, like other humidifiers, this product has three mist levels, and you will be getting a run time of 90 hours.

Most importantly, this unit is user-friendly, and with digital control, you can control the system. The clean silver protection protects the tank from bacteria and mold. 

Highlighting features:

  • The overall structure of this unit is user-friendly.
  • This humidifier covers up to 570 square feet.
  • The clean silver protection feature protects the tank from mold.

The 12-hour and the extension wand are our favorite features.

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8. Venta LW45

Next on our list is Venta LW45; most people will look for a 2-in-1 machine while buying a humidifier. However, this unit has more than one type of humidifier.

The venta cannot produce warm mist; this humidifier produces cold smoke and purifies the air. 

We did not enjoy the overall structure and design of this unit; but, the top-fill system and other features overshadow the looks of this humidifier.

The built-in aromatherapy feature of this unit is just perfect. The low-key indicator and automatic shut-off system work as a lifesaver. 

Highlighting features:

  • It is pretty easy to refill the tank.
  • This humidifier covers up to 800 square feet.
  • The built-in aromatherapy feature is a bonus.

Not to mention, Veta can cover up to 800 square feet and also remove pollen, dust, and bacteria from the air.

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Our third option from AIRCARE is different in terms of design and performance. This unit is more towards a tower fan and an alternative to a traditional humidifier. Moreover, D46 can cover an area of 1200 square feet. 

You might have seen D46 at shops and must have mistaken it as a tower fan.

The evaporative humidifier has removable tanks holding 2 gallons of water. The run time is a bit less than PureGuardian, as this unit has a run-time of 50 hours per filling. 

You can also control the mist level from the digital display located at the top of the tower. Not to mention, once the water tank is empty, it will give you a notification.

The D47 caught our attention because of its unique style, and we are impressed by the specifications. 

Highlighting features:

  • This humidifier has a high-mist dispersion.
  • There are two water tanks.
  • The digital humidistat gives complete control.
  • The output rate is relatively high. 
  • This humidifier covers up to 1200 square feet.

Out of all the room humidifiers, this one has a higher run-time, and therefore, it is a good choice for those who want to use it for halls and bigger spaces. 

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The last on our list is another humidifier by Aircare. However, this unit did not beat the coverage capacity of MA1201. EP9 can cover up to 2400 square feet, which is impressive for a humidifier with a total of 3.5 gallons. 

Not to mention, we are amazed by the stylish design, and it will perfectly fit with your aesthetic decor. The run-time of this unit is also commendable; the 60 hours between the tank refills.

The refilling of this unit is also easy, and you can control the function by the digital display. In addition to this, you can also set your desired humidity level; once the humidifier reaches the targeted group, the unit will shut off.

Highlighting features:

  • This unit is a pedestal-style humidifier.
  • The digital humidistat maintains the level.
  • Automatic shut-down feature.
  • Nine fan speed features, which you can control.

Aircare is a good pick, and the features are worth a second look! 

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What to Look for When Buying a Large Humidifier

We have put together a list of essential factors to look for while buying a humidifier. Moreover, do your research before making a purchase.

Ease of Use:

Ensure that you are buying a humidifier that is easy to operate. Easy to change setting, portability, cleaning, and refilling comes with ease of use.

You must purchase a user-friendly humidifier with a digital display and remote control. If you buy an evaporative humidifier, ensure that the filter and the wick are straightforward.

Variable speed:

The majority of the people complain about the noise of the humidifier.

You must purchase a humidifier that allows you to control the intensity of the fan.

A humidifier with multiple fan speeds will increase the level and generate maximum output.

Waterless automatic shut-off:

The maximum efficiency is generated when the unit has a waterless automatic shut-off feature.

This feature notifies when the tank is empty and shuts the unit off, saving electricity and preventing unnecessary wear and tear.


A timer is indeed a helpful feature; you must lookout for a humidifier having this feature. The majority of the people set a timer overnight so that the humidifier turns off after a set time.


A room humidifier for large rooms is an essential piece of equipment and adds to the comfort of living.

The various features that you must consider are all listed so that you can choose the model that suits your living spaces.

Moreover, the choices we have discussed here will help find the best humidifier. 

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