Top 5 Best Filterless Humidifier Reviews in 2018

Best Filterless Humidifier
(Last Updated On: August 25, 2018)

The main things to do to keep your humidifier in good shape is by replacing the water in the water tank once it runs dry, cleaning the unit and replacing the filters when needed.

Apparently, most traditional humidifier uses filters. But due to its downsides, as it requires regular maintenance and cleaning, many peoples now prefer the filterless models.

Today, the filterless models have become the norm in the business production of humidifiers.

The best filterless humidifier comes with great features that can help keep the air extremely moist and clean. Not only does it moisten your air efficiently, but it is also easy to maintain.

Additionally, since it does not come with any filters, it will help you save more money in the long run.

Humidifier with filter produces white dust that will need cleaning eventually, but filterless units is free from such problems. The reason is that it removes mineral deposit from the water with the aid of an electrostatic charge.

However, filter and filterless humidifiers can work great in your indoor spaces, but your preferred choice will depend on your specific needs. Hence, it’s essential to have great insight on both units to make the right picks. Nowadays, many people prefer to purchase the filterless units, but this can be pretty difficult due to the many types and brand on the market.

In this article, you will get to know about both humidifiers and the best filterless humidifiers that will work great in your home.




Filter Humidifier Vs. Filterless Humidifier

From the outer part, both units might look the same, but you should know that they both operate differently.  One simple difference between them is that one comes with a filter while the other does not. Also, the process both devices undergo before they emit mist is quite different.

In a humidifier with filter, the heated water is allowed to pass through a filter to remove impurities before the mist disperses into the air with the aid of an inbuilt fan.

The filterless ones remove impurities in the air with the use of electrostatic charge. These units also run quietly, and since it does not come with any filter, it requires less maintenance and cleaning. With this unit, you will save more money because no filter needs to be replaced in the future.

Filterless humidifier



  • Saves you more money since there is no filter to be replaced regularly
  • Are more affordable when compared to other models
  • It does not produce white fumes
  • It is less difficult to operate
  • They run quietly, hence it will not disturb your or bedtime. This makes it also suitable for a baby room
  • Easy to clean
  • Quiet operation
  • Easy to use



  • It requires regular cleaning on a daily basis or every week
  • These units are not ideal for those with respiratory problems, as it does not remove impurities efficiently




What to Consider When Buying A Filterless Humidifier

Today, most humidifier companies produce the filterless models due to its high demand. As a result of this, there’re many models of this unit in the market that makes it pretty tricky to get the right one. Hence, to ensure you purchase the best filterless humidifier, there’re essential things to consider before making the final decision.


You should always put this into consideration when shopping for one. The capacity of the unit will determine how effective it will keep your room air moisturized. Also, you need to know the room size you want to use it in before making your final decision.


However, it’s advisable to get one that comes with a large tank as this can make it run for longer hours. These ways it disperses enough to keep the air moist.

Additionally, avoid getting a large unit that its misting capacity is above your room size (measured in square foot). The reason is that excess moisture can spring up the growth of mold and other harmful effects.


The more features a unit comes with, the better the efficiency. A humidifier that has an adjustable mist setting will enable you to control the amount of moisture it will disperse into the air. This way, it prevents your room from getting too much moisture as it can lead to harmful effect.

Another great feature of humidifier is the timer setting and auto shut-off function. This allows you to regulate the duration at which it will run before it shut down. Also, with the auto-shutoff function, you don’t need to worry if the water in the unit dries up, as it can automatically turn off once it the water in its tank runs dry.


Humidity Control

A humidifier with humidistat will work great in keeping the humidity level of your room at a balanced rate. This feature prevents the unit from producing excessive moisture that could m.

Hence, you should always consider getting one with this feature. But if you have a filterless humidifier that does not has a humidistat, getting a hygrometer will help substitute for it.

Easy to clean

Apparently, since a filterless humidifier does not have any filter to remove impurities, it will still need regular maintenance and cleaning. This is because if impurities accumulate in the unit, it can weaken its efficiency. Hence, you should consider getting one that won’t require you cleaning it daily or the units that can be easily taken apart and assembled.




Which Humidifier Will Work Best: Filter Vs. Filterless

For those with respiratory problems, and if you’re the type that uses tap water, it’s best to use humidifiers with filters. This is because the filter help to remove bacteria germs and mold as well as impurities before dispersing the mist into the air. But This should not be an issue for those that use distilled or filtered water.

Unlike the filter humidifier, the filterless unit runs quietly. This makes it an ideal choice for those that want a quiet time when using a humidifier in their room. It is also good does not want to spend more after purchasing a humidifier since does not have a filter that needs replacement.  The only downside is that it does not work great in getting rid of impurities.




Table of Comparison – Top 5 Best Filterless Humidifier

•1 Gallon tank
•Optional night light
•Auto shut-off function
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•Adjustable mist output
•4 liter/ 1 gallon
•360 rotating nozzles
•Waterless auto shut-off
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•5 Liter tank/1.32 gallon
•360 degree adjustable
dual nozzle
•Built-in soft glow
LED light
•Auto shut-off
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•Optional night light
•1.5 liter tank
•Automatic shut-off
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•0.9 Gallons
•6 optional night light
•Mist control setting
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#1. Mistaire XL Ultrasonic Cool Mist Humidifier For Large Rooms

This humidifier is one of the most popular and best cool mist humidifiers without filter on the market. If you are looking for a humidifier that will make feel relaxed and breathe comfortably in your room, this is one best option for you. This device has a large size tank of 1 gallon and powerful mist output. This makes it an ideal choice for a large size room of up to 500 square feet.

It has a long operation time of 10 to 24 hours. This way, it can keep the air in your room moisturized all day.

With this humidifier, you don’t have to worry about noise as it runs quietly. This means you will certainly enjoy your bedtime without disturbance.

At night, it can lighten up your mood as it comes with an optional night light. It also provides you with 3 colors light option that you can choose from to give a more comfortable feeling at night.  Its auto-shut off function makes it energy efficient and safe for your home use.

Additionally, it comes with extra items for maximum efficiency. This includes disk cleaning brush, AC power adapter and user manual, and dual mist nozzle.

One exciting part about this humidifier brand is that it comes with a 5-year warranty and it has excellent customer support.



  • Has a large size tank
  • Waterless auto shut off function
  • Features nightlight with three color option
  • Long operation time



  • There’s no adjustable mist mode



#2. Joly Joy Ultrasonic Cool Mist Humidifier Filter-Free

The Joly joy filterless cool mist humidifier comes with great features that enhance its efficiency. This product comes with a large size tank that holds up to 1 gallon of water.

This device runs for up to 16 hours per single refill. It has a mist output of up to 350ml/hr. This unit comes in a slim and compact design that makes it fit into your modern home.

The device has 36O degree nozzle that rotates to disperse mist in a different direction. This way, it moistens the indoor air faster. You can easily regulate the amount of mist it disperses into the air as it comes with 3 level of adjustable mist output. It has a large cap opening that makes it easier to refill the tank when the water runs dry.

This unit uses an ultrasonic vibration to break down the water before dispersing it into the air.  Also, as it vibrates, it releases negative ion that helps to get rid of bacteria and purify the air.

Overall, the device is durable and would serve you for a very long time. You can use it to prevent dry air in your space as it can provide you with enough mist required to keep your skin hydrated.



  • Slim and compact
  • It can diffuse mist in any direction
  • Automatic shut-off mode to prevent it from burning out
  • Easy to operate
  • 3 in function as it can serve as a humidifier, air purifier, and ionizer



  • It is pretty noisy
  • Leaks out water as it gets old



#3. Rosewill Ultrasonic Cool Mist Humidifier for Bedroom Filter Free

The Rosewill is another popular unit when it comes to best filter free humidifiers. This unit is ideal for those suffering from sinus congestion and other breathing problems. It works great as it comes with a large tank. This means it can hold enough water for continuous operation.


It has an adjustable 360-degree rotating nozzle. That way, it allows you to control the direction of the mist for uniform dispersal. You can also place it at any angle and enjoy the mist without always having to move the device.

Also, the unit has an auto-shut mode that turns it off when the water runs dry. In this regard, it will prevent the device from burning out its sensitive part.

The unit comes with extra essential features like an adjustable misty setting, and built-in soft glow LED night light. Its misty settings allow you to control the amount of mist it disperses into the air.

If you’re looking for a filter free humidifier that would not disturb your sleep or study, this is one great device for you. The reason is that it uses an ultrasonic technology which makes it to operate quietly.

One thing you might find uncomfortable with when using this unit is that it requires regular cleaning after every use. Another downside is its bright Blue led light which has no switch off mode. In this regard, it is not an ideal choice for those that find it difficult to sleep with light at night.



  • It works great in a large room of up to 250 square foot
  • Easy to use
  • Large tank capacity



  • No button to turn off its super bright light
  • It makes an annoying sound when turned ON



#4. Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

Here comes another best filter free humidifier from Mist Aire. As you should know, keeping the air moisturized is one easy way to sleep comfortably and breathe easily during winter or if your home has dry air. Also, If you’re looking for a humidifier that will work great in a medium size room, then look no further than this beautiful unit.


This super quiet humidifier can run for up to 16 hours per single refill. You will also get a considerable amount of mist when using this unit as it features an adjustable mist control.

We love this humidifier, as it comes with a 2-year warranty and waterless auto shut-off.     This makes the unit more economical and safe for home use.

The downside to this humidifier is its small size tank of 1.5 liter and low running time. With this features the unit will not have a great effect on a large size room.

Overall, it runs quietly and highly efficient for a medium sized room.



  • You can easily adjust the amount of mist it disperses
  • It has an auto shut off that turn it off once the water runs dry
  • Its translucent water tank makes it possible to determine when it needs to be refilled
  • Has an optional night light to help lighten up your mood and provide you with maximum relaxation



  • Only efficient for smaller or medium size room



#5. Anypro Ultrasonic Cool Mist Humidifier Mist Humidifiers For Bedroom

The Anypro Ultrasonic humidifier is a beautiful unit known for its efficiency and durability. This device can provide adequate mist that will keep the air in your room moist air with just a single fill. The reason is that it can run for up to 20 to 36 hours on continuous operation. It is made of high-quality materials that can withstand mold growth and mineral buildup.


With this device, no worries about leakage as it has deep groove design that prevent it from cracks. You will also enjoy a peaceful bedtime because it runs quietly.

What makes it stand out when compared to other humidifiers on our list is its optional night light.  The humidifier provides you with 6 different colors to choose to help keep you relaxed and lighten up your mood.

Unlike other units, this humidifier disperses mist in only one direction as it does not come with a 360-degree rotating nozzle.

Overall, it is durable and has longer running hours than the other units in our list.



  • Quiet operation
  • Made with premium material
  • Suitable for a medium size room
  • Inexpensive



  • It disperses mist only in one direction
  • No Auto shut-off function




Final word

A humidifier without filter is very easy to clean and maintain. It is also very economical since it you don’t have anything to purchase in the future. Getting the best unit will be great as it will help provide enough mist to get rid of dry air.

Also, when shopping for one always consider the essential things that can enhance its efficiency.


However, our best choice is the MistAire XL Ultrasonic Cool Mist Humidifier. We choose this humidifier because of its large size tank and longer running hours. Not only that, but it also produces steam that can cover a large room.





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