Best Large Room Humidifier For Fresh and Healthier Air

Ian Mutuli
Updated on
Ian Mutuli

Ian Mutuli

Founder and Managing Editor of Archute. He is also a graduate architect from The University of Nairobi, Kenya.
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A humidifier adds moisture to your space which can be great for colds, flu, allergic symptoms, dry skin, and promotes healthy living conditions for your family. The best large room humidifier is ideal for rooms of up to 4,000-square-feet area and will help if your home's moisture levels are under the recommended scope of 30 to 60 percent.

Finding and purchasing the perfect large room humidifiers that meet your needs can be hectic with the many options you have to choose from in the market. That is why we have curated the five best room humidifiers with their pros and cons. This write-up further discusses the major factors you will have to consider while shopping for the best humidifier.

1. Dyson Pure Hot + Cool, HP01 HEPA Air Purifier, Space Heater & Fan, For Large Rooms

Dyson Pure Hot + Cool, HP01 HEPA Air Purifier, Space...
  • The Dyson Pure Hot Cool purifies, heats, and cools you delivering...
  • Dyson technology helps create a cleaner, healthier home - Our...
  • CAPTURES: The sealed HEPA filter captures 99; 97 Percent of...
  • PROJECTS: Projects purified air throughout the whole room; Air...
  • HEATING: Can be used for long range personal heating or fast,...

The Dyson Pure is the best humidifier to purify, warm, and cool the dry air perfectly. The Dyson brand is reputable, and the large room humidifier reviews are outstanding for delivering quiet and hygienic humidifiers. In addition, the Dyson humidifiers will automatically notice any unwanted particles and gases in the air and alert you.

The Dyson humidifier features a Uv filtration light and HEPA filters that ca[pture and get rid of 99 percent of any bacteria or mold in the water tank. The awesome thing is that it also features a self-cleaning characteristic that makes it unique. This cool and warm mist humidifier can be used in all seasons and cover 400 square feet-sized rooms.

The Dyson Pure humidifier has an air multiplier feature that will give over 77 gallons every second of airflow.


  • Has 10 Air Speed settings
  • Has an automatic shut off feature
  • Can work as Space Heater; Tower Fan; and HEPA Air Purifier
  • Has a two years warranty
  • Does not leave behind white mineral residue


  • They are quite pricey

2. Levoit Cool and Warm Mist Ultrasonic  Humidifier

LEVOIT Humidifiers for Bedroom Large Room Home, 6L Warm...
  • HIGH-EFFICIENCY, FOR WHOLE HOME: It provides humidification...
  • PATENT WARM MIST TECH FOR BEDROOM: It raises RH 10% in 20mins,...
  • PERFECT FOR LARGE ROOMS: With a mist output of up to 500 mL/hr,...
  • AUTOMATIC TURN ON & OFF: With a built-in sensor, Auto Mode...
  • HUMIDITY UP TO YOU: You can customize the ideal humidity...

Levoit lv600hh Cool and Warm Mist Ultrasonic is the best large room humidifier that will give you a warm and cool mist that makes it a perfect option for all seasons.

The Levoit lv600hh ultrasonic humidifiers feature a built-in humidistat or hygrostat sensor that will adjust the humidity levels and shut off automatically when you have reached your preferred humidity level. The advantage of this ultrasonic model is that you can add your favorite essential oils to get the aroma that you want in your house. Additionally, it comes with remote control, a cleaning brush, aroma or essential pads, absorption pads, and a guidebook.

The Levoit Cool and Warm Mist Ultrasonic humidifier are perfect for a large room of 753 square feet or 70 meters squared. The water tank capacity of this humidifier is 1.5 gallons or 6 liters that will help it run for 60 hours with a low humidity level.


  • Easy to operate
  • Very low noise levels
  • Convenient Remote Control
  • Excellent and easy controls
  • Has a wide opening on the top for easy cleaning


  • Requires often refills

3. Everlasting Comfort Cool Mist Humidifier

Everlasting Comfort Cool Mist Humidifier for Bedroom...
  • ✔️ Cool Mist Humidifier: Features a 6 liter (1.6 gallons)...
  • ✔️ Essential Oil Tray: More than simply a humidifier, we...
  • ✔️ Auto Shut Down, Whisper Quiet: Our vaporizer humidifier...
  • ✔️ Filterless Design: Our ultrasonic humidifier design is...
  • ✔️ 2 Year Replacement Policy: At Everlasting Comfort we care...

Everlasting Comfort Cool Mist Humidifier is the best cool mist model in the market. These cool mist humidifiers are designed with adjustable mist outputs and have a six-liter water tank. The humidifiers can humidify the air in a room of up to 500 square feet for up to 5o hours, making it a perfect option for large rooms.

The Everlasting Comfort Cool Mist Humidifier comes with an essential oil tray that allows you to add your preferred essential oils. The amazing thing is that these cool mist humidifiers can be used in kids' rooms, and they have a led light for the night.

This ultrasonic cool mist humidifier has a filterless design that saves on maintenance and replacement costs. In addition, it is recommended that you use a hydrometer alongside the humidifiers to help monitor and read the relative humidity levels, which should be between 40% to 60%.


  • Has auto-shutdown function
  • Comes with an essential oil compartment
  • Can go for two days without refilling
  • Can use regular tap water to operate
  • Has classic night mode can brighten your room


  • A bit tricky to clean and maintain

4. Air Innovations MH-801BA Digital Humidifier

Air Innovations MH-801BA 2.15 Gallon Cool Mist Dual...
  • Features A 15” Extension Nozzle So It Can Convert From A Table...
  • 2.15 Gallon Tanks That Runs For A Full 120 Hrs (15 Nights Of...
  • Tank And Base Are Infused With An Antimicrobial Inhibitor To Help...
  • Great For Kids And Babies, This Cool Mist Humidifier Also...
  • There’s A Handle On The Top And Bottom Of The Tank With Extra...

Air Innovations MH-801BA Digital Humidifier is the best portable humidifier that is available in the market. The digital humidifier features 15 inches extension spout that will give you a chance to convert it from a tabletop unit to a floor humidifier. In addition, the humidifier has a water tank that can hold up to 2.15 gallons and can run for 12o hours without a need to refill in 700 square feet room.

These portable humidifiers can comfortably be used in babies' or kids' rooms and are also great for hydrating your skin. The amazing part is that it has two tanks and can be used for large rooms. In addition, it comes with a remote control that is super convenient while turning the humidifier on and off or adjusting the mist output.

The Air Innovations model 801BA ultrasonic humidifier is a great option for freshening up your space. It has an attractive design and is constructed with high-quality materials. To add to that, it is an affordable humidifier.


  • Can be placed both on the floor and tabletop humidifier
  • Features an Automatic humidistat
  • Superior monitoring digital interface
  • Portable model
  • Come with a remote control
  • Features quiet operation


  • Needs regular maintenance

5. AIRCARE MA1201 Whole-House Console-Style Evaporative Humidifiers

AIRCARE MA1201 Whole-House Console-Style Evaporative...
  • Console-style humidifier for a whole house up to 3600 square feet
  • Digital humidistat automatically maintains your desired humidity...
  • Automatically shuts off when desired humidity level is reached or...
  • Easy to clean - evaporative wick traps mineral deposits, smooth...
  • Assembled dimension: 20.5(H) x 21.5(W) x 14.5 (l) in

AIRCARE MA1201 Whole-House Console-Style Evaporative Humidifier is a great humidifier for large spaces and acts as decor compartments. The function by blowing dry air to the wick filter and then circulate and improve air quality and water vapor to the atmosphere.

This large humidifier can raise the humidity above 86 percent and is used for adding moisture, which will help with dryness of the skin, itchiness, colds, and flu. In addition, the evaporative humidifier is notably energy-saving and quite affordable.

The amazing thing is that it has a Single bottle design, has Customizable humidity settings, Digital display, and can save you up to 10% of your energy bill.


  • Enables you to keep a target humidity
  • Perfect choice for very large rooms
  • Has a digital humidistat
  • Easy to clean, which prevent mold growth
  • Has Up to 3,600 sq. ft. coverage and a 36-hour runtime


  • It can only operate for a few hours

Factors to Consider Before Buying the Best Large Room Humidifiers

1. Type

When investing in the best humidifier for large, it is very important to check on the type and the design of the humidifier you want. There are mainly three types of humidifiers; evaporative humidifier, ultrasonic humidifier, and whole-house humidifier.

a) Evaporative humidifier

The evaporative humidifier will absorb water with the water wick that is inside the basin. The blower will accumulate air from the room and distribute it to the wick filters to add extra moisture and then circulate the moist air back to the room. The advantage is that these evaporative models will not leave white spots as other humidifiers do. However, it is very necessary to wash the humidifier at least once a week.

b) Ultrasonic humidifier

Ultrasonic humidifiers are designed with a vibrating diaphragm that releases a few drops of water particles to the atmosphere and is distributed by the blower. The water particles will have enough time to vaporize before they reach hard surfaces because the blower will blow the water particle in an upward direction first. These humidifiers are better for large rooms because they do not use the evaporation method.

c) Whole-house humidifier

Whole-house humidifiers are usually connected to your home's ductwork and distribute humidified air to the whole home using the HVAC system. The good thing is that you will not have to worry about refilling the water tanks because they have a limitless water supply from your home's plumbing system, which the humidifier connects to. In addition, the whole house humidifier will distribute the moisture to the whole house, unlike the ultrasonic and evaporative humidifiers.

2. Size

It is crucial to check the size of the humidifier and the size of the house you will be using the best large room humidifier in. There are also three main sizes; portable or tabletop humidifier, console, and whole-house sized humidifiers. They are great for very large houses of more than 4,000 square feet, and you will not have to keep refilling the water tanks. The whole house will be attached to your home's ductwork and distribute moisture to the entire house.

Console humidifiers are equally large and are mainly places on the floor. They are designed with bigger water tanks that will not need very often refilling, unlike the portable ones. A console is an excellent option for large rooms that are up to 1000 square feet. The portable or tabletop humidifiers, on the other hand, are smaller and have smaller tanks that will need frequent refilling. These models are less costly as compared to the whole house and the console humidifiers.

3. Water Tank Capacity

The water tank capacity is another very important consideration you will have to look at that goes hand in hand with the humidifier's size. Most humidifiers will have indications of the estimated run time from the manufactures. It is very important to pick the ones with removable and easy to refill tanks. The removable ones can be filled easily using the bathroom or the kitchen tap. If you intend to have, the humidifier running throughout the night, pick humidifiers with larger water tanks.

4.Warm Mist or Cool Mist

You will have to check if you will want the cool or warm mist humidifiers. The cool mist models will add moisture to the air by blowing dry air to the wick and then circulate mist output back to the room. The cool mist options are great for hotter seasons like the summer since they do not use heat. Additionally, they are safer to have on throughout the night or even in the kids' rooms.

On the other hand, the warm mist humidifiers will evaporate the water in the reservoir and then add water vapor to the air. Thus, they are ideal for adding soothing mist to the air, especially in cold seasons like winter.

5. Humidistat

The humidistat or the hygrostat is an automatic sensor that will indicate and monitor the air's moisture or humidity level. It would be great to pick a humidifier with this feature because you will not need to purchase a hygrometer to measure the mist levels.

The great thing is that the humidistat will automatically shut off the humidifier when you have achieved the desired humidity level. Thus, the future will also prevent excess moisture in the air that may cause fogging. This is a great feature for most busy people or people who want to leave their humidifier on as they sleep.

6. Warranties

When investing in the best large room humidifier, it is equally important to check the different manufacturers' warranty. Some of the small humidifiers will only offer limited warranties that will go for up to one year, while the large humidifiers can have extended warranties that can go for up to even five years. It is very important to check the warranties because it will save on the maintenance and defects cost.

Frequently Asked Questions about the Best Large Room Humidifier

1. Does a humidifier improve skin?

The best large room humidifier is great for your skin and hair because it will add moisture to the air, which is needed to keep your skin moist at all times. It is recommended that you keep your indoor humidity levels at 30 to 40 percent for great results.

2. Can I use tap water to fill the humidifier for a large room?

It is important to check if the humidifier you buy has a mineral cartridge to know if you should use tap water or distilled water. That been said, most humidifiers will function perfectly with tap water.

Ian Mutuli

About the author

Ian Mutuli

Founder and Managing Editor of Archute. He is also a graduate architect from The University of Nairobi, Kenya.
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