Imagine a calm, cold wind refreshing and energizing your senses on a hot summer day. Now imagine having the same refreshing feeling all year in the comfort of your own home. Welcome to the world of a cool mist humidifier, an ingenious technology that infuses your living areas with a calming ambiance.

1. Evaporative Cool Mist Humidifiers:

Consider this cool mist humidifier as nature’s method of indoor cooling. It takes in dry air and directs it through a wet wick or filter. The air absorbs moisture from the wick and releases it as a cool, pleasant mist. Because the method is natural and energy-efficient, an evaporative cool mist humidifier is an excellent choice for the environmentally minded.

Placement for Evaporative cool mist humidifier:

This kind of humidifier cannot increase the humidity of a room beyond a certain level. It usually works effectively aided by a fan. Hence it is best to place it in an area where it can be best exposed to the fan.

2. Ultrasonic Cool Mist Humidifiers:

An ultrasonic cool mist humidifier is your greatest buddy if you want a calm environment. This device employs ultrasonic vibrations to break water droplets into a thin mist without heat. It is whisper-quiet, energy-efficient, and includes various functions, like adjustable mist intensities and scent diffusing choices.

Read What is a Cool Mist Humidifier? for more about Evaporative vs. Ultrasonic humidifiers.

Placement for Cool Mist humidifiers:

Compared to the warm mist humidifier, this kind of humidifier can be used with little or no caution as the warm mist humidifier. To enjoy the maximum benefits of this model; you can place your machine close to the bed.

What are the benefits?

One of the best benefits of using a cool mist humidifier is its completely safe nature. Cool mist humidifiers do not use heating elements or boiling water; therefore, it is safe to use at close range and even around babies. These units are also tranquil, especially the ultrasonic model, and most of them generate nearly zero noise while operating.

Just as the name implies, they also generate cool mist, which causes a chilling feeling effect in the room. This is most especially useful during hot weather conditions. These humidifiers are also very easy to clean, although you must clean them frequently.

What are the drawbacks?

One disadvantage is that cool mist humidifiers are louder, which can be problematic for light sleepers; moreover, the cool air mist isn’t appropriate during cold weather. The biggest disadvantage is that cool mist humidifiers can readily amass microbial growth if improperly maintained. While they are straightforward, you must clean your humidifier frequently to prevent bacteria and mold growth.

The Best 5 Cool Mist Humidifiers in 2024

1) LEVOIT LV600HH 6L Warm and Cool Mist Ultrasonic Humidifier

LEVOIT LV600HH 6L Warm and Cool Mist Ultrasonic Humidifier
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The LV600HH stands out for its capacity to offer warm and cold mist options, addressing various demands and preferences. In just 20 minutes, the warm mist function increases humidity by 10%, offering better relief from problems brought on by dry air. During colds, the flu, or congestion, this feature is beneficial for easing sore throats and encouraging more comfortable breathing. Additionally, the option to turn out all lights and the near silence noise levels guarantee a restful sleep.

The LV600HH is ideal for large rooms, covering spaces up to 753 square feet (70 square meters), with a mist production of up to 500 mL/hr. The sizeable 6-liter tank’s 50-hour operating capacity eliminates the need for frequent refilling and guarantees constant humidity levels during the day and night.

With its built-in sensor and auto mode, the LV600HH provides unmatched convenience. The sensor eliminates guesswork from maintaining ideal conditions by automatically adjusting mist levels to your selected settings to maintain a healthy humidity level. For your particular requirements, you may also like the perfect humidity percentage for any room you want.

An essential oil diffuser is inside the LV600HH, another unique feature. 

You can experience the benefits of aromatherapy while also humidifying the air by adding your favorite essential oils to the fragrance box; this improves your general well-being by producing a beautiful, fragrant environment.

The LV600HH includes a handy remote control that allows changing settings while standing in another part of the room. This feature is handy when you’re already in bed and want to adjust without compromising comfort.

The LV600HH radiates elegance and utility in its design. Its sleek black color blends well with any environment, and its small size makes it simple to set up on desks, tables, or nightstands.


  • Dual Warm and Cool Mist
  • Rapid Humidification
  • Long Runtime
  • Automatic Mode and Built-in Sensor
  • Quiet Operation
  • #1 Best Seller


  • Requires Distilled or Filtered Water
  • Maintenance and Cleaning
  • No Timer Function

2) PureGuardian H4810AR Ultrasonic Humidifier

PureGuardian H4810AR Ultrasonic Humidifier
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This humidifier is undoubtedly one of the top products regarding class and actual performance in effecting a change in humidity levels. Being made by the Pure Guardian brand, be sure to expect much. It has a neat and curvy design, which splits the unit with the upper part consisting of the tank, and the lower, the rest of the humidifier. The front side harbors the control buttons for toggling between various device settings.

With a 2-gallon-sized water tank, expect a rock-solid backup time from this device, lasting up to 120hrs per complete fill. It is also suitable for large spaces and can conveniently serve up to 600 sqft in an area while effectively controlling humidity levels and alleviating sore throat problems. The water tank is designed with anti-silver treatment, whose principal function is to restrict the growth and accumulation of molds in the unit, hence guaranteeing a consistently clean and healthy mist production.

A standout feature in this device is the presence of a dual rotating nozzle that allows it to release mist produced in different directions, covering more ground and raising humidity faster than a regular humidifier with a single nozzle. While operating, it blends with the atmosphere to give a noiseless performance. As soon as the water gets low in the tank, an indicator pops up to alert the user to top up, and if ignored, the device shuts off as soon as water levels get too low.

The top side of this device contains a night light that gives it a glowing appearance at night (you can toggle it on or off), adding a touch of beauty to the room. While its primary purpose is to disperse mists, an aromatherapy option also exists whereby essential oils can add a great scent to the atmosphere.


  • Long runtime
  • Large water tank
  • Suitable for large spaces
  • Quiet operation
  • Silver clean treated water tank
  • Wide-area coverage
  • Essential oil tray
  • Low water level indicator and timer


  • White dust problems

3) Honeywell Cool Moisture Humidifier

Honeywell Cool Moisture Humidifier
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This reasonably sized evaporative humidifier features curves all around, giving it a slick and attractive look. The Honeywell HCM350W Cool Mist Humidifier has a relatively large tank of about 4L with a handle that makes it easy to remove for refills.

The humidifier has a filter to prevent white dust from being released with the mist when you use non-distilled water. Filters for this device lasted me about 4-6 weeks. 

In cold weather, running at high speed, the Honeywell HCM350W can raise a 625-square-foot apartment to 25% and peak at 35% in warm weather. For the most effective performance, use it in rooms lesser than 400 square feet.

This quiet, easy-to-clean, and fill-in humidifier comes with a large tank. Plus, it can accommodate non-distilled water thanks to its filter design and anti-bacterial treatment, which is extremely practical.


  • Quiet operation,
  • Easy to clean,
  • Large tank,
  • Accurate filter.


  • It doesn’t support essential oil usage,
  • It doesn’t have an automatic shut-off,
  • Expensive filter replacement.

4) Crane 4-in-1 Drop Ultrasonic Cool Mist Humidifier

Crane 4-in-1 Drop Ultrasonic Cool Mist Humidifier
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The Crane Ultrasonic Cool Mist Humidifier is like a teardrop, which grants it the title of the most adorable humidifier on this list. But there are many reasons you will like this unit. The water tank sits on top of the unit and features a transparent casing, making it easy to monitor the water level. The mist nozzle can rotate 360 degrees, allowing you to send the mist in your desired direction.

The design includes an auto shut-off function restricting the device from working without water in the tank. It has a 4-liter tank capacity, so it is limited to a room of about 500 square feet, although it is much more effective in a 200-250 square foot room. It has noiseless operation except for the bubble burst that comes up occasionally.

The unit works seamlessly and can run long before it needs a refill. It signals when the tank is full and needs filling with green and red lights, and do not bother at night.

It’s a great humidifier that is easy to use and clean, although you would do well to ensure the mist isn’t blocked by any object around, which can cause white dust to appear around the device. The water tank should also be placed on the machine to avoid leaking.

Enhance your environment further with its captivating color-changing night light, a sound machine offering three tranquil white noise options, and a convenient bottom tray for optional vapor pads or essential oil pads, indulging you in the serene embrace of aromatherapy all through the night.


  • Auto-off
  • Budget-friendly
  • Tranquil operation
  • Detachable cord
  • Cleanable tank


  • No timer function
  • No humidistat

5) Pure Guardian H965AR Ultrasonic Cool Mist Humidifier

Pure Guardian H965AR Ultrasonic Cool Mist Humidifier
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This tiny and portable device falls among the low-budget pure gem products; you can expect a well-affordable but still quality product. Though, of course, you shouldn’t express too much. Carrying a cone-like shape, the device boasts a translucent water tank for easy monitoring and two control buttons for smooth operation.

With a water tank of only 1 gallon, one might expect little per runtime for this device. In reality, however, it can afford a runtime of up to 70 hours on the lowest setting. That’s hugely impressive for a 1-gallon tank device. The water tank is also treated with clean silver protection, which avoids the accumulation of molds and slime on the water surface in the tank over time. This makes the device filter-free, hence reducing the user running costs drastically.

There exists an indicator close the control button, which glows as soon as the water in the tank gets low, alerting the user to refill, and should all signs be ignored, or maybe not seen, the auto-shutoff feature kicks in. This is very useful against overheating and unnecessary power consumption. The mist produced by this humidifier is only available in the cool type. Hence the device lacks the warm mist option, which is seen as a downside of the unit.

Running this unit is very quiet, while an option for a night light could be toggled on or off as desired, making it more suitable for use in the infant’s room. The device also poses the problem of littering white dust around the room generated with mists. It should, therefore, be used with distilled water only.


  • Filter-free
  • Long runtime
  • Mold resistance tank
  • Essential oil
  • Low water level indicator
  • Low water level indicator
  • Quiet operation


  • Cool mist only
  • White dust problems

Maintaining Cool Mist Humidifier

The proper maintenance of cool mist humidifiers guarantees that they deliver clean and adequate humidification:

  1. Disconnect the humidifier and emptying the water tank regularly to avoid mold and bacteria growth. 
  2. Remove the humidifier’s water tray, nozzle, and other detachable components. 
  3. Wash these areas with gentle soap and water, being mindful of any mineral deposits that may have accumulated. 
  4. To avoid soap residue, it is critical to rinse all areas properly. 
  5. Replaceable filters are available on certain cool mist humidifiers; follow the manufacturer’s instructions to establish the recommended replacement schedule. 
  6. Inspect the unit’s air intake vents for dust and debris regularly, as this might reduce its performance. 
  7. Wipe off the humidifier’s exterior to eliminate any dust or filth. 
  8. When storing the humidifier, keep it somewhere dry and cold. 
  9. To avoid mineral accumulation, use distilled water instead of tap water. 

Following these instructions, you can keep your cool mist humidifier clean and functional for a healthier indoor atmosphere.