The use of the best filterless humidifier is trending in the humidifier world. Why? the high cost of running and maintaining humidifiers that use filters was something consumers were avoiding because it adds up to monthly expenses plus the energy cost of running a humidifier. When we talk about the running cost of humidifiers, we mean the time spent cleaning it + extra running cost. Even though one can’t wave aside energy bills incur in humidifier use as it is designed to be powered by electricity. Humidifiers users can still learn to reduce the cost of maintaining their humidifiers. You can achieve this result by investing in a filterless humidifier that requires fewer no extra cost of buying new filters. However, our best filterless humidifier reviews featured top products for picking the right unit. We’re going to start this discussion with a comparison, followed by the informative guide and our recommendation. 

Top 8 Best Filterless Humidifier Reviews

Product NameFeatures  
TrueMist Top Fill Cool Mist Humidifier
TrueMist Top Fill Cool Mist Humidifier Check On Amazon

  • Price:$
  • Space:250 sq. ft.
  • Tank size: 2.5 liter
  • Runtime:48 hours
  • Weight:4 pounds

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Rosewill Cool Mist HumidifierRosewill Cool Mist Humidifier
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  • Price:$+
  • Space:250 sq. ft.
  • Tank size: 5 liter
  • Runtime:24 hours
  • Weight:4.6 pounds

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VAVA Top Fill Ultrasonic Humidifier

VAVA Top Fill Ultrasonic Humidifier Check On Amazon

  • Price:$+
  • Space:250 sq. ft.
  • Tank size: 2.5 liter
  • Runtime:10 hours
  • Weight:6.2 pounds
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BONECO Warm or Cool Mist 7135
BONECO Warm or Cool Mist

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  • Price:$$$
  • Space:650 sq. ft.
  • Tank size: 3.5 liter
  • Runtime:24 hours
  • Weight:6.2 pounds
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PureGuardian Top Fill Cool MistPureGuardian Top Fill Ultrasonic Cool Mist Humidifier
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  • Price:$+
  • Space:450 sq. ft.
  • Tank size: 6.5 liter
  • Runtime:24 hours
  • Weight:3.45 pounds
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Holmes HUL2425D Ultrasonic
Holmes HUL2425D Ultrasonic Cool Mist Filter Free Humidifier Check On Amazon

  • Price:$
  • Space:250 sq. ft.
  • Tank size: 1.5 liter
  • Runtime:24 hours
  • Weight:3 pounds
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Vicks V4500 FilterFree Humidifier
Vicks V4500 FilterFree Humidifier Vicks V4500 FilterFree Humidifier Check On Amazon

  • Price:$+
  • Space:250 sq. ft.
  • Tank size: 1.5 liter
  • Runtime:16 hours
  • Weight:7.85 pounds

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URPOWER 5L Large Capacity Ultrasonic Filterless Humidifier Check On Amazon

  • Price:$$+
  • Space:250 sq. ft.
  • Tank size: 5 liter
  • Runtime:17 hours
  • Weight:4.56 pounds
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What is a filterless humidifier?

A humidifier that uses no filters in its operation yet releases mist free of airborne allergies is called a filter-less humidifier. However, this type of humidifier is designed to use de-mineralized cartridge. This cartridge helps to capture particles and allergies present in the water to have healthy air safe for breathing.

The benefits of using filterless humidifier includes:

  • There is no filter to wash or replace, unlike units that use filters.
  • Most humidifiers with no filters are known to operate at a quiet noise level.
  • Ideal for bedroom and office use.

Consequently, filterless humidifiers are usually designed for use in a small-sized room because of their less coverage capacity. In order words, they are not ideal for whole-house humidification. However, if you think of releasing humidity into your entire home, a whole house humidifier is a perfect choice. If you are among those that have incurred too much on humidifiers that use filters, you may try a filterless humidifier as a choice to reduce the aftermarket cost of operation. The ultrasonic units are common types of filterless humidifiers and here you will find top brands for your needs.

1. TrueMist Top Fill Cool Mist Humidifier

  • The Best Filterless Humidifier In 2020 Reviews by Consumers Reports
  • The Best Filterless Humidifier In 2020 Reviews by Consumers Reports

The Truemist humidifier comes about the right time for consumers to pick from the list of our filterless humidifier reviews and it is one of the small filterless humidifier found in the market. This product features a nice-looking appearance that fits into modern home settings yet serving as a humidifier. Most importantly, it has no messy filters to clean or change as a filterless unit.

Truemist Company has brought a revolution on how a humidifier works and benefits the family in a simple design format. The patent and detachable design inputted into this product make it out-beat competitive brands. When it comes to cleaning, no stress because the True Mist has a wide tank opening and no hard to reach areas. This makes the process simple while maintaining your device for quality mist and extension of product life.

Refilling is also as easy that you will find doing. Use a container to put water or simply place it under a faucet by detaching the tank from the body to replenish the water. The tank also features a convenient handle that makes the refilling process an experienced one. Furthermore, on the purchase of this top fill humidifier by the Truemist brand, you will be entitled to a variable mist control and a multi-directional mist nozzle. A water level sensor is also among the features.

Our + for this

  • 5 liter water tank capacity.
  • Up to 16 hours of cool mist while on high settings and 48 hours on low speed.
  • Turns off when water level is low.
  • The tank and base is detachable.
  • Equipped with 7 colors LED light that compliments night sleep.
  • There is no filter to wash or replace.

The working performance of this humidifier in releasing cool moisture into the air will greatly relieves your household from symptoms of dry air when you make it your rightful choice today.

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2. Rosewill Ultrasonic Cool Mist Humidifier: Best Bedroom Filter Free Unit

  • Rosewill Ultrasonic Cool Mist Humidifier: Best Bedroom Filter Free

Here comes a simple design filter-free humidifier from the Rosewill brand of the company. This tabletop unit is ideal for bedrooms such as medium to small-sized rooms.

According to studies, maintaining the right humidity level at the indoor level helps keeps the throat and nasal passages hydrated and also prevents the feeling of static electricity. However, you can count on Rosewill ultrasonic cool-mist humidifier to enable you to meets this demand. As an ultrasonic humidifier, no filter requires in its operation and also ultrasonic units are also known to run with reduced noise. This is one of the benefits to derive if you decide to consider the Rosewill product.

From a 5 liter tank, 360 degrees dual nozzle with variable mist control settings. You will get mist throughout the night with 360 mist flow circulation while you regulate the speed accordingly to your preference at a particular time. Peace of mind running this humidifier is also assured as it features low water tank automatic shut-off. Also, the features of the Rosewill cool mist humidifier are a soft LED night light to enable you to operate it even in the dark.

Our plus for this

  • Two mist nozzle that rotates 360 degrees clockwise.
  • The tank features a handle that enhances quick refilling.
  • Nice for bedrooms, office, and even babies’ rooms as it operates quietly.
  • Safety functioning that shuts the unit off when there no water to disperse.

If your room or space is up to 250 square feet, you may consider this humidifier or read further reviews.

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3. Top Fill Ultrasonic VAVA Cool Mist Humidifier

  • Top Fill Ultrasonic VAVA Cool Mist Humidifier

Top-fill humidifiers are becoming more popular in the filterless humidifiers market. The reasons, they allow an easy process of adding water into their tank and also cleaning through their top opening tank. This is what you will gain if you decide to make the VAVA ultrasonic unit your favorites pick.

The top wide tank opening discourages spillage as water enters freely and also promotes good cleaning leaving no nook and cranny left for a spotless tank. Unlike competitive units, the VAVA base stays always dry without water escaping into it and this discourages growths of molds and bacteria inside.

To customize personal operation, the easy to refill and clean unit features 3 essential timers setting such as the automatic start, auto-shut-off, and sleeping mode. Fully get the mist how you want it from a rotational 360-degree nozzle that delivers mist wherever you desire.

Our plus for this

  • Safe dry base.
  • Three timer settings to personalize your needs.
  • Smart LED light.
  • Good water accommodating capacity.
  • Wide tank opening.
  • Top-fill mode.
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4. BONECO Warm or Cool Mist Ultrasonic Humidifier 7135

The 7135 warm and cool mist unit is one of the best Boneco humidifier delighted by consumers. And if you are someone who loves this brand product, we highly recommend this model from them. The ultrasonic features two mist options which you can either choose the warm or cool mist option to humidify your home respectively.

This device works by using high-frequency vibrations to converts water molecules into tiny fine-mist thereby creating a comfortable atmosphere in your room. In addition, the Boneco humidifier readily adds humidity to space measuring about 650 square feet while delivering mist up to 24 hrs from its 3.5-gallon tank capacity.

Fully automated humidifier with digital display and programmable hygrostat that helps you maintains the right indoor humidity level. The ultrasonic unit does not use filters in its operation saving you the need to clean filters or replace any. And also, features a whisper operation suitable for sleep hours.

Our plus for this

  • Two mist option (warm or cool mist).
  • Compact designed that require less space.
  • High water accommodation tank capacity.
  • Runs with whisper mode.
  • Digital hygrostat provides accurate humidity results needed, no high or too low.
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5. PureGuardian Top Fill Ultrasonic Cool Mist Humidifier

This humidifier is another perfect choice of bedroom humidifier that can protect you from problems that result from the dry indoor atmosphere. The pureguardian works better in small to medium-sized bedrooms. When most competitive units allow the growth of mildew and mold inside the water, the PureGuardian features silver clean protection infused into its tank that prevents mold and mildew growing on the surface of the water.

Also, with its ultrasonic technology, you will enjoy cool mist air in your room while running ultra-quietly that suitable for the night sleep. This is not just a humidifier that disperses cool moisture air but also helps in creating an aromatic atmosphere for relaxation by adding a few drops of your favorite essential oil into the optional fragrance tray.

Take note, do not add the essential oil directly into the water tank as it can damage the unit and devoid you from enjoying the associated warranty.

Our plus for this

  • Ideal for small to medium room size.
  • Running time depends on the spending settings selected.
  • The tank features silver clean protection that fights molds and mildew growth.
  • Compartment to add essential oil.
  • Variable speed control.
  • On/Off night light.
  • Top-fill tank for easy refill and cleaning.
  • It only requires little room space.

The pure guardian will help you create comfortable home environments for people suffering from dry skin, allergies, and cold.

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6. Holmes HUL2425D Ultrasonic Cool Mist Filter Free Humidifier

Dry skin, nose congestion, and other problem of dry air can be prevented or resolved when you release humidity into the air. The Holmes HUL2425D ultrasonic humidifier is available for consumers who love holmes brands humidifiers. This particular product from them is a perfect tabletop unit ideal for bedrooms that lack space. Feature an elegant design, making it a great home air improvement device for modern bedrooms while serving its needs.

Everything comes easier using this holms ultrasonic cool mist humidifier. It creates a comfortable mist room environment by choosing from 3-speed control settings and also thanks to the auto shut off operation that turns the humidifier off when no water to disperse anymore. This product features a 1-gallon tank that enables the humidifier to run up to 24 hours delivering mist and this means you can rely on this unit to humidify your room as you sleep.

Our plus for this

  • Antimicrobial protection infused into the tank that prevents mold and odors that adversely affect humidifier performance.
  • Simple operation, thanks to the simple push-button.
  • Automatic shut-off.
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7. Vicks V4500 FilterFree Humidifier

If you are someone who has so many likes for the Vicks humidifier brand, this Vick v4500 humidifier is here to look at. The Vicks humidifier is a filter-free unit that makes running and cleaning easier. Unlike competitive units, no filter to wash or replace thereby saves you the extra cost of running a humidifier. This filterless humidifier by the Vicks brand is equipped with an effortless knob button to let you adjust mist intensity. Experience a new dimension on cleaning a humidifier tank when you purchase this device, thanks to the large opening tank that lets you do this.

Our plus for this

  • This humidifier features Vick vapors with therapy integrated scent pad heater.
  • Whisper-quiet operation.
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8. URPOWER 5L Large Capacity Ultrasonic Filterless Humidifier

The urpower humidifier is one best filterless humidifier used by many in large room humidification. The large tank capacity features an ultrasonic technology with no filter to wash or cleaning in its operation. The decorative design is equipped with safety features for those looking for a humidifier that provides peace of mind.  There is no need of you turning the unit off yourself; its automatic shut-off does this for you when water level is low.  This also prevents it from overheating or short circuiting. This is one of the humidifier without filter that is easy to operates, thanks to its one power-button that lets you control the humidifier.

Our plus for this

  • Large sized room capacity humidification with large tank.
  • 3 mist output; low, medium and high settings.
  • Safety feature that turns the humidifier off.
  • Quiet operation that never interfere with night sleep.
  • One button operation.
  • sleep mode settings

This URPOWER ultrasonic humidifier will efficiently create cool mist air in large coverage room-sized which most competitive units may disappoint. With its user manual, beginners learn to operate this humidifier without a formal guide.

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How Do I Clean My Filterless Humidifier

Humidifiers are good for healthy living both in summer or wintertime, but the major problem is when users don’t wash their units often. When a humidifier is left unwashed especially the cool mist filter-less models, bacteria, germs, mildew, mold, etc. can breed inside the machine which may contaminate the air you breathe.  Hence, it a necessity to wash your device at least twice weekly as regards filterless humidifiers and other portable models. You can do this using a vinegar solution or diluted hydrogen peroxide.  Wash and rinse thoroughly and dry out before the next use. More so, the manufacturer manual guide also indicated how to clean the device, therefore, consult the user’s manual for more details on how to maintain it.

Frequently Asked Questions
  • Are filterless humidifiers better?  

From our in-depth research and analysis, a filter-free unit is good when it comes to saving the cost of purchasing filters all the time. Besides, no worries about dirty filters to wash. Consequently, without filter humidifiers are not effective for whole-house humidification because they have lesser coverage capacity. 

  • Are filterless humidifiers safe?

It is safe to use despite it does not possess filter, but there is a technology in them that helps keep your water clean. As such you are guaranteed safe air to breathe at home.       

  • How do filterless humidifiers work?

They are generally installed with ultrasonic technology that helps them vibrate in the process of working to disperse moisture into the air. Hence, don’t use filters in their operation. 

Wrapping It Up

If you want the best filterless humidifier this 2020, our best selection features cost-effective, high performing, and long-lasting devices you can decide upon. Although, our filter-less humidifier reviews focus on the details of each unit in the comparison table is also worth checking here. We, hope our best filterless humidifier reviews and guide featuring a list of top 8 products will help you find the right unit while saving you the cost of replacing filters.

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