11 Best Cool Mist Humidifiers Without Filter in 2022


If you live in an area with dry weather, our list of the best cool mist humidifiers without filters can help you out. Humidifiers work well for those with dry, flaky skin since they add moisture to the environment. However, they may be energy-consuming. Humidifiers without filters intake less electricity to function. They also contain a diffuser tray that allows you to pour your favorite oils for aromatherapy. Their ultrasonic technology spreads cool mist through the room quietly to prevent causing any disturbance.

Available in various sizes and designs, you can explore our list to learn more about the different products and features.

Types Of Filter-Free Humidifiers

  1. Ultrasonic: Ultrasonic humidifier vibrates the water at ultrasonic frequency and causes the water droplets to break into a fine cool mist.
  2. Warm mist: It uses a heating element that boils the water to release warm visible mist.
  3. Evaporative: It uses a wicking filter that pulls the water from the base up to the built-in fan. The fan blows moisture off the saturated filter and helps move the moisture into the air.
  4. Vaporizer: Vaporizer has electrodes that interact with the water’s minerals, causing the water to boil and release steam in the air.

11 Best Cool Mist Humidifiers Without Filters

1. Everlasting Comfort Cool Mist Humidifier

Everlasting Comfort Cool Mist Humidifier


Featuring a powerful high mist output, Everlasting Comfort cool mist humidifier works for rooms up to 500sq. ft. With nine ounces per hour output, it can last up to six nights between refills. The oil diffuser feature allows you to use your favorite essential oil to enjoy a therapeutic sleep. It ensures a 43% humidity level to give a soothing effect to your dry and itchy skin. The unique filter less design makes it sustainable and has a six-liter water tank that can last up to 50 hours.


  • High mist output
  • Improves sleep quality
  • Includes two-year replacement policy
  • Suitable for bedrooms and baby rooms


  • Slippery case

2. Geniani Cool Mist Humidifiers

Geniani Cool Mist Humidifiers


With a built-in intelligent sensor, the Geniani humidifier maintains optimal humidity levels automatically. This aromatic humidifier is designed to accommodate essential oil trays and helps relieve stress. The top-fill design allows easy water filling, and you can manually adjust the humidity by choosing any of the three output levels. The water tank can hold up to four liters of water and can last up to 18 hours on the highest settings.


  • Whisper-quiet
  • Auto shut-off feature
  • Soothing night light
  • Certified by Red Dot
  • Relieves allergy


  • Cleaning instructions may not be clear

3. Crane Cool Mist Humidifier

Crane Cool Mist Humidifier


The Crane drop humidifier offers variable output settings to humidify a room up to 500sq. ft. It runs whisper quiet that works perfectly for light sleepers, especially babies. The scientifically designed unit features a three-liter tank and an easy-to-carry handle at the top. It ensures 24-hour run time that takes away your worry of running it through the night.


  • Anti-bacterial
  • Auto-off
  • Easy to clean
  • BPA-free
  • Stylish design


  • Small water tank

4. Vicks Cool Mist Humidifier

Vicks Cool Mist Humidifier


For temporary relief of cough and congestion, Vicks humidifier uses ultrasonic technology to release visible cool mist. The 4.5-liter tank contains enough water to run up to 30 hours per filling. It features dual Vicks vapopad slots for the ultimate soothing vapor experience and a variable humidity control switch for customized output. The wide tank opening makes it easy to clean and fill the tank. It has a translucent tank to allow you to monitor water levels.


  • Quiet operation
  • Relieves allergies
  • Provides temporary relief from cough and congestion
  • Auto shut-off


  • Plastic quality is not good

5. Levoit Cool Mist Humidifiers

Levoit Cool Mist Humidifiers


Levoit offers an ultrasonic air vaporizer that releases cool mist. The model is scientifically designed to be whisper quiet even at the highest mist levels and delivers a perfect goodnight sleep. It features an optional blue night light for the ideal environment. The mist level covers up to 290sq. ft area in your room. It has three adjustable modes and can last up to 24 hours at a low mist level when the tank is full. The 360° rotating nozzle evenly modifies the surroundings without making the floor wet.


  • BPA-free
  • Auto shut-off
  • FCC-certified and ETL-listed
  • ROHS compliant


  • Difficult to clean

6. Ucareair Cool Mist Humidifier

Ucareair Cool Mist Humidifier


The ultrasonic humidifier with a one-touch button to operate, Ucareair is ideal for baby rooms and offices. Its two-liter water tank allows up to 25 hours of working time in low mist. The cool mist provides up to 200sq. ft coverage area in your room for maximum relief. It includes two mist setting levels to adjust mist direction and speed according to your comfort level. This filter less humidifier helps you save electricity bills, and its 360° rotatable nozzle evenly distributes the mist without wetting the floor.


  • Easy to refill and clean
  • Keeps you hydrated
  • Compact design
  • Auto shut-off


  • May be a little noisy

7. AquaOasis Cool Mist Humidifier

AquaOasis Cool Mist Humidifier


Designed with a simple control dial, the Aquaoasis humidifier delivers cool mist with its ultrasonic technology. The 360° rotating nozzle allows you to customize the mist flow direction with the control dial fully. It eliminates dry air and keeps the humidity level to its desired level. The 2.2-liter super large tank runs upto 24 hours per filling, covering a large part of your room. The auto-shut feature takes care of the surroundings when you are sleeping or working.


  • Whisper-quiet
  • Easy to operate and maintain
  • Relieves itchiness
  • Includes a cleaning brush


  • Does not work with hard water

8. Honeywell Cool Mist Humidifier

Honeywell Cool Mist Humidifier


Honeywell cool mist is designed for medium-sized rooms and keeps the humidity levels between 40 and 60% to balance the air. It uses ultrasonic humidification technology to establish a clean breathing environment. The variable output settings provide soothing visible cool mist to adjust to your desirable need. It has a 3.7-liter tank capacity with a run time of 24 hours per filling. The design features directional mist outlets that are adjusted to your desired direction.


  • Easy to use and clean
  • Autoshut-off
  • Large tank opening for easy filling and cleaning
  • Adjustable output control


  • Little noisy

9. Safety 1st Cool Mist Humidifier

Safety 1st Cool Mist Humidifier


The Safety 1st humidifier increases the room’s humidity with a cool and gentle mist to ease cold symptoms. It has an adjustable knob for variable mist control to achieve the right moisture level. Its easy-to-carry handle makes it easy to pick the product without the fear of slipping from your hand. The rotating mist cap provides wide nursery coverage.


  • Easy to clean
  • Auto-shut
  • Compact design
  • Large tank with a flat top for easy filling


  • May leave the floor wet

10. Pureguardian Ultrasonic Cool Mist Humidifier

Pureguardian Ultrasonic Cool Mist Humidifier


Designed with ultrasonic technology, Pureguardian operates quietly, making it ideal for a soundless sleep. It features a large 1.8-liter tank that allows a 30- hour run time per fill. It disperses ultrafine cool mist that is soothing and gives you relief from dry air. This humidifier is designed for rooms up to 350sq. ft and the low water indicator light lets you know the time to refill the jar. The directional misty nozzle ensures cool mist to your desired direction.


  • Auto-shut
  • Fights the growth of mold and mildew
  • Three-speed setting
  • Compact and slender
  • Optional night light


  • Missing instructions

11. HiAir Cool Mist Humidifier

HiAir Cool Mist Humidifier

Designed to give you comfort in all the seasons, HiAir ensures you a restful sleep at the best humidity levels. It has an ergonomic arc-shaped reservoir that fits in your hand with a secured grip. With ultrasonic technology, it allows you a noiseless sleep even at the highest setting. It has a 1.8-liter tank capacity that allows a 30-hour run time at the low mist setting. The hydrating mist keeps your indoor plants fresh and healthy.


  • Easy setup
  • 360° nozzle
  • Easy to refill and clean
  • Compact design


  • Can make a vibrating noise

How To Choose The Right Humidifier Without Filter?

Here are a few tips to consider while choosing a humidifier without a filter.

  1. Tank capacity: The unit’s effectiveness to moisturize your house depends on the water tank capacity. Invest in a large water tank as it can work for a longer time.
  2. Humidity regulator: Opt for a humidifier with a humidistat that helps maintain the moisture level and prevents it from crossing a particular point.
  3. Sound level: No humidifier is designed with soundproof technology.  If you are using a humidifier for your bedroom, opt for the one with minimum decibel levels for a whisper quiet sound.

Frequently Asked Questions

  1. Is it good to use a humidifier in the summer?

A humidifier may be beneficial during summer if you live in a severely dry climate. It makes the air less dry and provides comfort if you have respiratory problems.

  1. Can you sleep with a humidifier on?

Yes, it is safe to use a humidifier while you sleep. Humidifiers keep the respiratory tract moist and comfortable.

Humidifiers help you to adjust the moisture levels in the air at home. Designed with auto-shut technology, you can use these humidifiers without worrying about the low water levels. The cool mist keeps your skin hydrated and relieves you from allergies. Browse the above list of the best cool mist humidifiers without filters and keep your home’s moisture levels in a desirable condition.

Why Trust MomJunction?

Wedetso Chirhah writes extensively about household appliances and electronics. His reviews are trusted as he researches and compares different products online. Here, he has compiled a list of the best cool mist humidifiers without filters that can add moisture to your indoor environment with very little electricity consumption. He also mentions the pros and cons of each product and apprises you of the factors you should consider to choose the right humidifier.

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Wedetso Chirhah

Wedetso Chirhah holds a masters degree in English Literature. He had written content for more than 15 B2B websites and edited school books before joining MomJunction as an editor. Wedetso ensures the articles meet the highest editorial standards. He enjoys making content understandable and relatable to readers, and he is a big fan of the versatile em dash. He also... more