Best Filterless Humidifier (January 2020) – Reviewed

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Know How to Choose the Best Filterless Humidifier

With the advances in technology, life has become more convenient and modern. Before, we just have the traditional humidifier which uses filter to ensure it dispenses clean air. However, its maintenance and cleaning cost tends to be high in the long run. Moreover, quite hassle to periodically clean and replace the filter.

Fortunately, we now have several models and brands of filterless humidifier to ease our burden of keeping sufficient moisture and clean air in our homes. These new devices remove the hassle of replacing and cleaning filters to ensure the device dispenses clean air.

There are numerous benefits to take advantage of these appliances. Consequently, we have a quick buying guide to help you choose the best filterless humidifier unit for 2020. Likewise, we included a comparison chart and an in-depth review of the top 10 best filterless humidifiers 2020.


Top 10 Best Filterless Humidifier (January 2020) – Top 10 Picks & Reviews

KNOW WHAT TO LOOK FOR The Best Filterless Humidifier

Do not buy a filterless humidifier yet, if you do not know the essential factors you need to look for a good quality unit.

1. Types of Filterless Humidifier

There are a few types of filterless humidifier in the market, and each has its respective trait and operation.

  • Cool or Warm Mist - In the market, we can have two major types of filterless humidifiers, that is, cool and warm mist. The former is used during the warmer seasons, and we have a few sub-types under which is discussed later. Meanwhile, the warm mist is used during the cold seasons. It typically uses warm air from steam to supply warm mist around the room.
  • Steam - These units operate by boiling the water inside the humidifier to generate steam which is then used to warm and supply moisture in the air.
  • Impeller - This unit has a rotating disc which pushes the water into the diffuser so that it will be transformed into mists.
  • Ultrasonic - As the name suggests, this uses frequency or sound waves to vibrate water molecules, and transform water into mists.

2. Tank Capacity

This refers to the water tank capacity of a humidifier. If your room is huge, then you will need a unit with a larger capacity to generate sufficient supply of mist for continuous hours. Typically, you need to match the unit's tank capacity with your area.

3. Area Coverage

It is also wise to look at the product label of the unit, to check the estimated area it can supply for moisture.

4. Humidistat

This feature is responsible for adjusting the right relative humidity level you want for your home. Some modern units, have their humidistat automatically adjust depending on the current humidity level inside the room.

5. Noise level

In general, filterless humidifiers are quieter compared to those with filters because the latter has a fan which generates noise during its operation. You can check the noise level of the unit in its product label, which is mostly expressed in decibels.

Top 10 Best Filterless Humidifier review 2020

1. Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

  • Tank Capacity - 1.5L
  • Mist time - 16 hrs
  • Coverage area - 250 sqft
  • Moisture output - 150ml/h



• Low noise level and efficient mist operation

• Customer service can still be improved

• Easy to refill and clean


• Adequate moisture supply


Best for Overall

Among hundreds of filterless humidifiers, this one is our top pick for 2020. We find it to have almost everything you want to look for a great humidifier for your home.

This one is an ultrasonic cool mist humidifier and it generates low noise which is great for night usage. Its 1.5L tank can continuously work up to 16 hours at a moisture rate of 150ml per hour. Its area coverage is fairly good for the price and capacity.

Its 360-degree nozzle enables an even distribution of the mist inside a 250 square foot room. There is also a very minimal requirement for its cleaning and refilling action. You just lift the tank from its base and unscrew the tank cap. Overall, we recommend this humidifier for the comfort and convenience of your home.

Customer service can still be improved, but the device works perfectly

2. Everlasting Comfort Ultrasonic Cool Mist Humidifier

  • Tank Capacity - 6L
  • Mist time - 50 hours
  • Coverage area - 400 sqft
  • Moisture output - 270ml/h



• Large tank capacity and mist rate

• Nothing so far

• Economical price


• Auto shut-off function


Best for Huge Mist Supply

If you are looking for a humidifier with huge mist production, this second unit in our list is your best option. It has a water tank capacity of 6L and mist rate of 270 ml/h which is enough to accommodate an area of 400 square foot.

The second thing admirable from this one, is it does not leak despite having a large capacity. The auto shut-off feature works as expected and a good safety function, particularly when the tank is empty. Likewise, it has a compartment for essential oils for aromatherapy in the room.

Nothing to gripe about it.

3. VicTsing Ultrasonic Cool Mist Humidifier

  • Tank Capacity - 2L
  • Mist time - 10 hours
  • Coverage area - 100 - 270 sqft
  • Moisture output - 180ml/h



• Budget-friendly price for good quality

• Sensor and design can still be improved

• 10 hours of continuous mist production


• Durable construction


Best for Budget

If you are looking for a good quality humidifier at a very affordable price, this unit is your best bet. It got all the necessary features of a modern filterless humidifier at a budget-wise cost.

First off, we look into the mist rate, tank capacity, and area coverage. With a mist rate of 180ml/h, it is already good for a standard room humidifier function. A 2L tank capacity is also logical to accommodate an area of 100 to 270 square foot.

For an economical price, the auto shut-off mode is a plus factor with a red LED light to warn that the tank is already empty. We believe the air escape at the base of the humidifier is not working or small. Consequently, it affects the gravity-fed mechanism of the topwater compartment down the vibration section which converts it to mist. Hence, not all water on top is pulled down to become mist.

Overall, this third humidifier is an excellent option for its budget-friendly price.

The main gripes we see are its design and sensor. The rest is flawless.

4. LEVOIT Warm/Cool Mist Ultrasonic Humidifier

  • Tank Capacity - 6L
  • Mist time - 36 hrs
  • Coverage area - 280 sqft
  • Moisture output - 500ml/h



• Affordable remote control humidifier

• The hygrometer is not that accurate

• Large tank capacity and high mist rate


• Sleek design


Best for Remote Function

For the price, this humidifier is more than enough, not to mention we love the remote function which operates at a fairly long distance.

If you look for another 6L humidifier in the market, the price can be more than $100. This one is fairly affordable without compromising quality and features. It can efficiently run for 6 to 10 hours of continuous operation.

With its low noise level, it can never disturb the sleep of your family at night. Likewise, the auto shut-off mode works as expected. Let us emphasize again, the remote function works great and covers a fairly long distance. No need to reach high. This model also has a good modern look.

However, the hygrometer of this model is not that accurate.

5. Vicks Cool Mist Humidifiers

  • Tank Capacity - 1.2 gal
  • Mist time - 30 hours
  • Coverage area - 100 - 400 sqft
  • Moisture output - 151 ml/h



• Easy to adjust the humidity level

• No modern features like the expensive ones

• Easy to refill and maintain


• Aromatherapy


Best for Easy Maintenance

The best thing about this unit is that it is easy to maintain and clean. Aside from that, you can place Dual Scent Pad of Vicks Vapo Pads to provide aromatherapy. Great for those having coughs, asthma, and trouble sleeping.

You can use this overnight without being disturbed as it has low noise level operation. The amount of cool mist is produced is sufficient to keep your skin from drying and getting any respiratory illnesses. Moreover, there is no leaking about this unit. Overall, it is a great humidifier for all-season purpose.

We just don't like because: It does not have other modern features such as auto shut-off and LED indicator.

6. Honeywell HUL535B Cool Mist Humidifier

  • Tank Capacity - 1 gal
  • Mist time - up to 24h low mode
  • Coverage area - 100-200 sqft
  • Moisture output - 157 ml/h



• Economical price and good quality

• For light use only

• Moving nozzle for even mist distribution


• Works flawlessly


For a price below $60, the quality of this humidifier is superb and a good trade-off. It also has the auto shut-off feature and LED light indicator for an empty tank.

Other things worth admiring from this unit include its low maintenance requirements, easy to clean, and its nozzle moves for even distribution of mist. The design is simple but sleek.

Moreover, it offers good two-year warranty service for any product problems.

Only suitable for light use.

7. Mooka Ultrasonic Cool Mist Humidifier

  • Tank Capacity - 4L
  • Mist time - 16h
  • Coverage area - 161 - 440 sqft
  • Moisture output - 100/200/300 ml/h



• Excellent price trade-off

 • Humidistat can still be improved

• 4L capacity


• Large tank capacity


This a solid evidence for the advancement in technology. This unit got an amazing modern feature similar to other units and works without any flaw.

For a price below $100, you get an excellent filterless humidifier. We like its 4-stage filtration system, sleep mode,3-mist settings, and humidistat. We are amazed by the two feet height of the mist as it is expelled out from the device.

Its black color and design give it an impressive modern look. The humidity sensor works as expected. Moreover, the three mist setting is good for adjusting mist output and prolonging its operation time at lower settings.

8. Pallas Cool Mist Ultrasonic Humidifier

  • Tank Capacity - 5L
  • Mist time - 20 hours
  • Coverage area - 100-400 sqft
  • Moisture output - 250ml/h



• 20 hours straight operation

• No auto shut-off mode

• Ergonomic design


• Cleaner air


Aside from being a humidifier, it ensures clean air due to its activated carbon cotton cartridge. This is an ultrasonic humidifier which operates at a low sound level, thus, keeping you a good sleep at night.

The second feature we love about this unit is its 360-degree nozzle. It spreads the mist evenly around the room. For a large area, this has no problem as it has 5L tank capacity and can work 20 hours straight.

Its overall features and performance are great for its affordable price.

No auto shut-off mode.

9. Elechomes UC5501 Ultrasonic Cool Mist Humidifier

  • Tank Capacity - 6L
  • Mist time - 12-40 h
  • Coverage area - 750 sqft
  • Moisture output - 550ml/h



• Modern features and remote control

• Slightly pricey

• Functional humidity sensor


• Easy to operate, low noise level


This humidifier looks so modern and expensive but for the price and quality, it is reasonable. This unit has a large tank capacity to supply a sufficient amount of moisture in a large area.

There are several things to like about this model such as its remote control features and aromatherapy, where you can add essential oils to your mist. The humidistat function of this unit works without a doubt. Moreover, the tank is easy to clean and refill because it has a wide mouth.

The entire construction of this unit is tough and well-polished. We think this humidifier is great for any home moisture supplier.

10. Homasy Ultrasonic Cool Mist Humidifier

  • Tank Capacity - 5L
  • Mist time - 40 h
  • Coverage area - 550 sqft 
  • Moisture output - 125 ml/h



• Affordable price

• No smart humidity sensor

• Huge tank capacity


• Even saturation of cool mist with its 360-degree nozzle


You can get this decent humidifier for a price below $50, and it works as expected. The large tank capacity of this unit can perfectly supply enough moisture to an area of 550 square foot.

This one has a 360-degree nozzle to sufficiently saturate the room with a cool mist. It is a great way of keeping your family healthy. You can adjust its mist rate at low settings so it can last over the night.

There is no burden in cleaning this unit as it has a wide mouth. Further, this unit is friendly to babies because it operates at around 25 decibels only.

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