Best Filterless Humidifier 2020 – Save Money Save Time

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Are you a busy executive that is always on the go? Or a stay home mom juggling the hectic schedules of a few kids? If those sound like you, getting replacement filters for your humidifiers is probably the last thing on your to do list. One of the biggest drawbacks of humidifiers is the need to replace filters regularly due to the buildup of scale and dirt on them. 

To avoid that, filterless humidifiers were invented and now homeowners can forget about filter replacement schedules and save money on filter replacement every few months. While humidifiers without filters are truly time and cost saving in the long run, there are still some considerations you should weigh before purchasing one. 

To help you with your decision, we did the homework and here are the results.

Below, you will find a list of 5 best filterless humidifiers from reputable international brands, each with their pros and cons clearly stated.

Warm Mist/Cool MistCoverage AreaRunning TimeEase of cleaning
Taotronics TT-AH018Warm + Cool450 q. ft.45 hoursEasy
Levoit LV600HHWarm + Cool753 sq. ft.60 hoursModerate
HuPro PremiumWarm + Cool500 sq. ft.30 hoursEasy
Pure Enrichment MistAireCool250 sq. ft.16 hoursEasy
Vicks Filter-freeCool 400 sq. ft.30 hoursModerate
Best Filterless Humidifiers

You’ll also find a buyers’ guide where you can read our rationale when deciding how to rate these products, and hopefully you can use it yourself when making future purchases.

In a Hurry? This Is Our Winner!

TaoTronics TT-AH018 Warm And Cool Mist Humidifier

Best Overall Humidifier Without Filter

Product Overview

  • Coverage area: 450 sq. ft. / 40 sq. m.
  • Water tank capacity: 1.45 gallons / 5.5 litre
  • Essential Oils Compatibility: No
  • Refilling: top fill
  • Running time:45  hours
  • Dimensions: 10.2” x 8.07” x 12.6”
  • Weight: 6.8 lbs

The TaoTronics TT-AH018 warm and cool mist humidifier is an ultrasonics humidifier that can produce both warm and cool water vapor to humidify the room. While not technically a steam vaporizer, it does contain a heating element to produce warm mist that can reach temperatures of 60°C / 140°F. For consumers like me who could never decide whether a cool mist or warm mist was better, this is perfect. As an ultrasonic humidifier, there is no fan required and hence this unit is pretty quiet. It registers about 35 dB while it is operating and is a good fit for a bedroom and light sleepers.

With a coverage of about 200 to 450 sq. ft., this humidifier is good for a medium sized room and can run up to 45 hours between refills. For refilling, this is a top fill humidifier and refilling is easy and convenient. Just pull up the top lid and pour water in. 

Other features include a touch screen LED display for style and easy handling. The settings may be adjusted to customize mist output, mist temperature and also the humidity level. As with any good humidifier, this model comes with an inbuilt humidistat that allows it to determine the room humidity and adjust the humidity according to the user’s preferences. There are also two 360° nozzles which enable the user to direct the mist where they want it.

As with most ultrasonic humidifiers, there will be white dust generated from this unit because of the mineral contents in the water. As much possible, it is advised to use distilled or filtered water rather than hard water. That might be a little bit more troublesome for users but if you do not mind cleaning the humidifier slightly more frequently, hard water is fine as well!

Pros

  • Has warm and cool mist for different seasons
  • Able to customize mist temperature to suit one’s needs
  • Quiet during operation
  • Long running time between refills
  • Top fill makes for easy refilling

Cons

  • Not compatible with essential oils
  • Generate white dust during operation

What the fans love: “This humidifiers works excellent for my large master bedroom. It has a large water tank so I do not need to change the water everyday. The part I love most is that it comes with sleeping mode which is really quiet. The design is awesome. It is easy to set up with a phone and to clean inside of the tank. Highly recommend this humidifier. “


Best Filterless Humidifier Buyers’ Guide

When choosing a humidifier for your home, homeowners are typically torn between filterless and filter models. Each has its pros and cons and there is no “best” option. Homeowners will need to gauge which model suits their purposes and needs more and that will be the most ideal option. To help you with that, we will be going through the advantages of filterless humidifiers and also the things to consider when getting your filterless humidifiers.

Advantages Of Filterless Humidifiers

Quiet Operation

Filterless humidifiers are typically ultrasonic or vaporizer humidifiers. These humidifiers generally do not have any moving parts like fans to create the water vapor. Therefore, they are generally very quiet when they are working. If you are looking for a quiet humidifier for use in your bedroom or study room then you should definitely consider a filterless humidifier.

The safe limit recommended by experts at the US Environmental Protection Agency is 70 dB but that is relevant for workspaces only. In our homes, a reasonable limit to aim for would be anything below 45 dB. Any noise beyond that would tend to disturb you or your family member‘s rest. Having a filterless humidifier would be immensely helpful for getting good rest and improving concentration. 

If you like to find out more about the health effects of prolonged exposure to loud noises, do check out our post on how noise pollution affects your health!

Lower Expenditure Long Term

The main advantage of filterless humidifiers is that long term maintenance costs are kept at a minimum. For example, a evaporative humidifier in a normal household would require replacement of the filter every 3 months and each replacement filter costs about 10 dollars. In a year’s time, that is 40 dollars. To put things into perspective, some humidifiers from top brands only cost about 80 dollars. While filterless humidifiers may cost more upfront, they cost much less long term as there is no need for frequent filter replacement.

Easier Maintenance

Besides the cost of replacing the filters in a typical humidifier, homeowners also have to remember replacement schedules and go through the act of replacing the filter every 2 to 3 monthly. While not difficult, these are still bothersome tasks that take attention and time away from your work or family. Having a filterless humidifier removes all that hassle so you never have to worry about going to the store to get a replacement filter when you are busy with work.

Types Of Humidifiers

There are 4 main types of humidifiers

  • Evaporative
  • Ultrasonics
  • Steam Vaporizer
  • Air washer

Evaporative

In essence, evaporative humidifiers work by evaporation of the water in the humidifier and releases it as a cool mist. Inside most evaporative humidifiers is a wick that absorbs the water in the humidifier. A fan then evaporates the water in the wick giving us water vapour and increasing the humidity in the room. For those who are unfamiliar with what a wick is, it is a porous cylindrical structure that has a large surface area which allows maximum water absorption and water evaporation.

The wick also acts like a filter to filter out any impurities or contaminants in the water being used in the humidifier. Due to the presence of this wick filter, the type of water used in an evaporative humidifier is less restrictive than an ultrasonic humidifier which does not use a filter. Generally, you can use normal tap water in an evaporative humidifier without any issues. Wicks are usually quite large in size and therefore you will find that most evaporative humidifiers are bulkier in size and also heavier.

Another advantage of evaporative humidifiers is that it can never over-humidify the air because it works by evaporation. If the ambient air is already saturated with water, evaporation will not be able to occur no matter how much the fan blows at the water. 

The purchase cost of an evaporative humidifier is usually the lowest among the different types of humidifiers but the operating cost is the highest from the replacement of wicks and filters. It is recommended that filters be replaced every 3 to 6 monthly depending on the usage of your humidifiers. Different humidifiers may also have different recommendations so it would be best to check in with the manufacturers if you are intending to get an evaporative humidifier.

Evaporative humidifiers also tend to be louder due to the running fan that is used to evaporate the water in the humidifier. Some humidifiers can register noise level up to 50 dB at their highest speed settings. If you are intending to use your humidifier in your bedroom or if you are very sensitive to noise then an evaporative humidifier may not be for you.

Evaporative models have filters so if you prefer a filterless model then you should avoid evaporative humidifiers.

Steam Humidifiers/Vaporizer/Warm Mist

Vaporizer humidifiers basically boil the water in the humidifier into steam before releasing it into the air. As you can probably imagine, the mist from a vaporizer can get quite hot and hence it is also known as a warm mist humidifier. Vaporizer or warm mist humidifiers are very popular among homeowners suffering from allergies or asthma because the warm mist usually has a more soothing and comforting effect on sensitive airways than cool mist humidifiers. 

Due to the heating of the water in the vaporizer, most bacteria in the water are also eliminated and the mist coming from these humidifiers are generally cleaner and healthier compared to an ultrasonic humidifier. 

Vaporizer steam humidifiers typically do not come with fans and hence there are no moving parts. Therefore they are usually silent and fit the bill for a quiet humidifier.

Vaporizers typically do not have filters and can be considered if you need a filterless humidifier.

Ultrasonics Humidifier 

An ultrasonic humidifier is a nebulizer that uses high frequency vibrations to break water down into ultra-fine droplets which then get released into the air as a mist. Depending on the specific model, the mist may be a cool mist or a warm mist. An easy way to see if a humidifier is an ultrasonic humidifier is to see if there is a mist plume coming out from the model. If there is a mist plume, it is usually an ultrasonic humidifier. 

An ultrasonic humidifier does not have a wick like an evaporative humidifier and typically does not have any filter as well. As such, they are usually less bulky and lighter. However, because of the lack of a filter to absorb impurities and contaminants, it is recommended to use either distilled water or filtered water in the humidifier. If hard water such as tap water is used, ultrasonic humidifiers may dispel white dust into the air due to the mineral contents in the water. 

Ultrasonic humidifiers have the highest humidity output among all the types of humidifier because it actively breaks down water into fine droplets and forcefully discharges it into the air. Theoretically, there is the risk of over-humidifying the air but most humidifiers have an inbuilt humidistat to prevent that from happening.

In terms of price, ultrasonic humidifiers usually cost more upfront but have the lowest operating cost because there is no need for filter replacement every 3 to 6 months. 

Ultrasonic humidifiers also do not typically come with fans and do not contain much moving parts. They are usually pretty quiet during operation and generally do not register noise levels above 40 dB. For more information on quiet humidifier, check out our post on the quietest humidifiers on the market!

Ultrasonic humidifiers are your GO TO choice for filterless humidifiers.

 Air Washer

Air washers are 2-in-1 appliances that combine a humidifier and an air purifier together in one unit. Besides being able to control the humidity in the air, air washers also clean the air by filtering large particles, pollen and contaminants from the air. With a combination of these two functions, the indoor air quality in your house will be maintained at a comfortable and healthy level. 

In order to perform the air purification and humidification, airwashers usually have inbuilt fans and discs. These moving parts contribute the higher noise levels that are seen with airwasher.

Airwashers may contain filters sometimes.

Evaporative HumidifierUltrasonic HumidifierSteam HumidifierAir Washer
Mode of humidificationEvaporation Ultrasonic vibrationSteamEvaporation
Cool/Warm MistCoolCan be bothWarmCool
Contains fanYesNoNoSometimes
Contains filterYesNoNoSometimes
NoiseNoisyQuietQuietNoisy
CostModerateModerateLowHigh
PortabilityModerateGoodGoodModerate
Comparison of types of humidifiers

Coverage Area

When choosing your humidifier, you need to find out the size of your room as accurately as possible to avoid disappointment. The easiest way to find out the size of your room is to measure the length and breadth of your room and then multiply them together.

Once you have an idea of the actual size of your room, you can look at the models of humidifiers that you are interested in. Almost all manufacturers will list down the coverage area of their humidifiers in the product overview. These give you a good indication of what size room the humidifier is best for. 

When looking at these values provided by the manufacturers, I would probably round them down by about 20%. For example, the manufacturer may say that the humidifier can cover an area of 1000 sq. ft. but I would take away 20% from that and estimate the coverage area to be about 800 sq. ft. This is because these values were probably measured in an ideal environment where there are no leaks or drafts in the room. In real life, we may have leaky windows, wall cracks, door gaps that may contribute to the loss in humidity.

Warm Mist vs Cool Mist

If I have to choose between the two types of mist for my filterless humidifier, I would go with warm mist. Warm mist is generated by boiling water to get steam and this process of boiling can remove harmful bacteria from the water before releasing it into the air. Since the humidifier does not have a humidifier to remove pollutants, boiling it helps to reduce some of the bacteria load that may be in the water.

That being said, do not get overly worried because you own a cool mist humidifier now. If you use clean water and maintain your humidifier regularly, there would not be much harmful pollutants or bacteria in your water anyway. It is just a bonus to have it as warm mist for filterless humidifiers.

If you are looking for a stem humidifier, do check out our post on the best steam humidifier!

UV Light

Besides the usual wick filters, some humidifiers have additional methods of air cleansing. One such method is using UV light to sanitize the water in the humidifier. This process eliminates 99% of germs, bacteria, viruses, and mold lurking in the water. For filterless humidifiers, this feature acts as an adjunctive method of cleaning the water without a conventional filter. It may be even more effective than a traditional filter!

Ease Of Maintenance

This refers to the ease of refilling water and the ease of cleaning. Most humidifiers will require a refill of water every 24 hour depending on the capacity of the water tank. For something that you have to do frequently, it makes sense to find a model that allows easy refilling that is fast, efficient and neat. Usually, a top refill model is easier to do refilling as you just need to cover the top lid and pour in water. Generally, bottom refills tend to be messier and more of a hassle.

Humidifiers usually need a good thorough wash once every week. Depending on the model of the humidifier, the cleaning may take anything from 10 minutes to 30 minutes. When choosing a humidifier that is easy to clean, avoid units with many components or units with many small parts that are difficult to access. Some models come with specialized brush to allow users to reach difficult to access areas. The water tank should have a large access hole which allows the users to place the whole hand in for easy scrubbing.

If a humidifier cannot be cleaned properly, there will be buildup of lime, mold and fungus and these particles can get released into the air when the humidifier is working. This is to be avoided when using a filterless humidifier because these harmful pollutants cannot be filtered away. Therefore, a filterless humidifier should be easy to clean well.


Best Filterless Humidifier Product review

Levoit LV600HH Hybrid Ultrasonic Humidifier

Best Large Room Humidifier Without Filter

Product Overview

  • Coverage area: 753 sq. ft. / 70 sq. m.
  • Water tank capacity: 1.5 gallons / 6 litre
  • Essential Oil Compatibility: Yes
  • Running time: 24 – 36 hours
  • Dimensions: 11.3’ x 7’ x 10.5’
  • Weight: 4.92 lbs

The Levoit LV600HH Hybrid Ultrasonic Humidifier is a dual mist humidifier that can put out both warm and cool mist depending on your settings. Covering an area of 753 sq. fr, this is an extremely powerful humidifier that can work well in a large room. Powered by ultrasonics, this humidifier does not have a fan and is whisper quiet. It registers a mere 35 dB when it is operating on the highest setting and it is barely discernible. This makes it a perfect choice for a humidifier in a bedroom.

In terms of functionality, this humidifier comes with an auto mode which does the heavy lifting for you by automatically adjusting the humidity to a comfortable level. However, if you would like to customize the humidity level yourself, you can also pick an exact percentage and adjust it until you find your preferred humidity level. 

For homeowners who sometimes forget to do a refill, you will really appreciate the auto shutoff that kicks into place when there is no more water left in the tank. For users who use aromatherapy, you will be thrilled to know there is an aroma box for your essential oils in this humidifier.

Regarding the ease of use, I have mixed feelings about the Levoit LV600HH. The remote control is a nice feature which allows homeowners to adjust the settings from the comfort of their couch or bed in the middle of the night. 

However, I really have an issue with the water refilling. The water cap is on the base of the water tank. So during a refill, you have to remove the tank, turn it upside down to fill it up and all the while dripping water everywhere and then turn it back again before inserting it back to the humidifier.

As with most ultrasonic humidifiers, it is recommended that you use distilled water or filtered water instead of tap water. Tap water is considered hard water that contains traces of mineral deposits. When used in an ultrasonic humidifier, it releases white dust into the air which may be inhaled by the user. Also, hard water will cause rapid buildup of mineral deposits in the humidifier resulting in more frequent washes. And this is one heater which does require a fair bit of work when washing. There are multiple components which require cleaning and disinfection so each wash can take about 20 minutes if you are thorough. 

All in all, a nice sleek humidifier with numerous awesome features which does a great job in humidification. However, it does require a bit more work for maintenance.

Pros

  • Large coverage area
  • Dual mist function
  • Quiet – 35 dB
  • Long running time
  • Auto shutoff function
  • Aroma box for aromatherapy
  • Touchscreen LED display

Cons

  • Requires distilled or filtered water for best results
  • Refilling water is messy
  • Washing is somewhat tedious

What the fans love: “First, I love this humidifier. We have 4 different humidifiers in our home, and this one is by far our favorite. The settings are easily adjustable, no leaks, it’s stable, it’s quiet, no problems. And the customer service is great!”


HuPro Premium Ultrasonic Cool And Warm Humidifier

Best Quiet Humidifier Without Filter

Product Overview

  • Coverage area: up to 500 sq. ft./ 47 sq. m
  • Water tank capacity: 1 gallons /4 litre
  • Essential Oil Compatibility: Yes
  • Running time: 30 hours
  • Dimensions: 14” x 11.2” x 10.5”
  • Weight: 8.48 lb

The HuPro Premium Ultrasonic Cool and Warm Humidifier is a dual mist humidifier that can cover an area up to 500 sq. ft. with its 4 gallon water tank. This large capacity humidifier has a running time of 30 hours between refills allowing users to use it through the night without waking up to refill it. If it does run out of water during the night, the auto shutoff feature kicks in, ensuring the safety of the unit and the user. As an ultrasonic humidifier, this model is also very quiet, registering only about 30 dB on the highest speed setting. This makes it an ideal choice for babies, seniors and sensitive sleepers.

In terms of functionality, the dual mist feature allows users to choose between cool or warm mist depending on their preference for the day. The smart humidification system incorporates three types of humidity control, auto mode, constant humidity and 5 speed levels. There is also an essential oils tray for homeowners who love to indulge in some aromatherapy at the end of a tiring day.

One particular feature that caught our attention was the triple purification unit that consisted of  a ceramic filter, UV light and air ionization. The ceramic filter contains active carbon and mineral pellets that will absorb impurities from the water as it passes through the filter resulting in cleaner and fresher air. The great thing about this filter is that it never needs replacement so you never have to worry about replacement schedules or fork out additional cash for replacement filters.  Another feature that aids the cleansing of air is the air ionization. It produces 300 million cleansing negative ions per minute to decontaminate the water of fungus, virus and fungi. Combine that with an UV light that prevents odor in the water and you have a winner!

For ease of use, I really love that it is a top refilling humidifier because that is just so convenient for homeowners to refill without much effort and without any mess. The water tank also has an extra-wide opening for easy filling and cleaning. 

One gripe I have with this humidifier is that the mist shoots straight up and some droplets will just drop down and wet the surface the humidifier is sitting on. It would have been better if the mist can be directed away from the humidifier and further away. It still does a good job but users will need to make sure they protect the floor with a rug or a tray so that water does not collect. Besides wetting the floor, this also causes the humidistat to register a higher humidity than what the room really is.

Pros

  • Quiet
  • Auto shut off feature
  • Triple purification feature
  • Good coverage area
  • Easy to refill water and clean

Cons

  • Tends to wet the surface/floor that it sits on
  • Humidistat can be inaccurate because the mist is saturated near the unit

What the fans love: “Easy to clean due to the removable water bin. Virtually silent. No fans or other noise. Love the little warming tray to put some scented oil. Keeps the master bedroom humidity at 45% ( up from 33% naturally ) and has solved respiration problems due to dry air. Bought a second one for the office.”


Pure Enrichment MistAire Ultrasonic Cool Mist Humidifier

Best Portable Humidifier Without Filter

Product Overview

  • Coverage area: 250 sq. ft. / 25 sq. m.
  • Water tank capacity: 0.3 gallons / 1.5 litre
  • Refilling: Bottom fill
  • Running time: 16 hours 
  • Dimensions: 8” x 6” x 9”
  • Weight: 2.3 lbs

The Pure Enrichment MistAire humidifier is an ultrasonic humidifier which puts out cool mist as its mode of humidification. It comes with a 0.3 gallon water tank that can run for 16 hours between refills. With a coverage area of about 250 sq. ft., it is a comfortable fit for a small sized room.

With two different settings of mist speed, users will have some degree of control over the amount of humidification needed. There is no inbuilt humidistat for complete customization so you will need a separate humidistat if you desire a tight control of humidity level at home. There is a 360 degree rotatable nozzle that allows you to direct the mist towards the areas you want and away from areas which do not need so much moisture.

Quietness is also one of the features of this humidifier. It is whisper quiet and will not disturb the peace and quiet as you enjoy the beautiful greenery on your balcony. Other features include waterless auto shut off and it comes with a cleaning brush to with the small spaces while maintaining your humidifier.

Perhaps the most defining point of this humidifier is how light and portable it is while still maintaining a decent amount of humidification. Weighing just slightly 2 pounds, you can bring this humidifier anyway, be it your home or office.

Do note that this is a bottom fill humidifier so you will need to remove the whole tank while refilling. Generally, a bottom fill humidifier is less convenient than a top fill humidifier and requires a bit more work.

Pros

  • Light and portable
  • Easy to clean
  • Decent humidification for a small humidifier
  • Quiet

Cons

  • Bottom fill is more troublesome to refill
  • Distilled or filtered water preferred

What the fans love:”Love the small humidifier I purchased — I use it in a bedroom and it makes a tremendous difference! So quiet you don’t know it’s on and provides just the right amount of moisture to keep me breathing easy all through cold weather months.”


Vicks Filter Free Ultrasonic Cool Mist Humidifier

Best Cool Mist Humidifier Without Filter

Product Overview

  • Coverage area: 400 sq. ft. / 37 sq. m.
  • Water tank capacity: 1.2 gallons / 6 litre
  • Refilling: Bottom fill
  • Essential oil compatibility: No
  • Running time: 30 hours 
  • Dimensions: 12” x 9.5” x 8.5”
  • Weight: 4.3 lbs

The Vicks filter-free humidifier is an ultrasonic humidifier that produces cool mist humidification. As with the case with most other ultrasonic humidifiers, this model does not come with any filters giving homeowners a hassle free humidification experience. With a large water capacity of 1.2 gallons, this humidifier can run up to 30 hours between refills while humidifying a medium sized room of about 400 sq. ft.

As an ultrasonic humidifier without any moving parts, this humidifier is generally silent during operation and is a good addition to your bedroom or study room. For adjustments of the humidity levels, the Vicks filter-free humidifier comes with a twist knob to manage your home humidity. While not entirely customizable like a precise digital display, there is still some degree of personalization. 

This humidifier is not compatible with common essential oils on the market so do avoid dropping your own oils into the tank as this may void the warranty. However, you can purchase their Vicks VapoPads that can be used with this humidifier in the VapoPad slots beside the twist knob. This releases a nice soothing vapor that will be comfortable for homeowners who may be asthmtic or just generally sensitive. This unit also comes with automatic shut-off when the humidifier has run out of water, preventing circuit burns and potential family fires.

Regarding the ease of maintenance, the Vicks filter-free humidifier is generally easy to wash. The tank of this humidifier features a wide tank opening that allows for easy filling and cleaning. There are also few small components that may need more meticulous washing. 

All in all, this is a no-frills humidifier that can deliver the work with minimal fuss. Maintenance is not difficult if you do a consistent job of rinsing the unit and looking after it.

Pros

  • Light and portable
  • Easy to clean
  • Decent humidification for a small humidifier
  • Quiet

Cons

  • Bottom fill is more troublesome to refill
  • Distilled or filtered water preferred

What the fans love: “We were quite pleased that this humidifier is nearly silent while running. It puts out a decent amount of mist without soaking nearby surfaces. 


Frequently Asked Questions (FAQs)

Q: Where is the best place to put a humidifier?

A: Long story short.

  • Placement in the middle of the room leads to fast and even humidification
  • Keep humidifier 14 -17 feet (4-5m) away from walls and furniture
  • Place 3 feet (1 m) away from the bed 
  • Elevate the humidifier 2 feet off the ground
  • Keep the windows and doors shut when using the humidifier
  • Avoid running a humidifier and air purifier in the same room
  • Avoid placing humidifier in direct sunlight

If you like the full story, check out our guide on the best practices when positioning your humidifier!

Q: Is it better to have a humidifier with a filter or without

A: It depends on what purpose you are using your humidifier for. Humidifiers with filters are great for creating clean, fresh moisture that is comfortable for homeowners with asthma or allergies. However, they are more expensive in the long term and require more maintenance work. Therefore, they are not suitable for homeowners on a budget or homeowners who are very busy. For these users, humidifiers without filters might be their best bet!

Q: Is humidifier without filter safe?

Yes humidifiers without filters can be safe as long as you use clean water and maintain your humidifier well. If you use clean water, the water vapor generated from it will be clean as well. If you use dirty water, even a humidifier with powerful filters will still give you filthy air. 

Your humidifiers also need to be cleaned regularly to prevent scale and bacteria buildup. These harmful pollutants may get released into the air by your filterless humidifier due to a lack of filter.

Q: Should the humidifier run all night?

A: Yes it is perfectly fine to keep the humidifier running all night if you always find your self waking up with dry mouth and dry nasal passages. However, homeowners should be mindful to keep the humidifier well maintained if they wish to run it all night. 

  • Always ensure there is enough water in the unit for overnight usage. Running the unit without water may burn the circuit and damage the humidifier. Alternatively, get a model with automatic waterless shut off.
  • Clean the humidifier regularly and rid it of lime, mold and fungus. If not, these particles will be distributed into the air every night during your beauty sleep and harm your health
  • Use distilled or filtered water instead of hard tap water to reduce the amount of lime and scale buildup

Q: Do humidifiers kill airborne viruses?

A:  No. Humidifiers do not kill viruses per se. However, maintaining the indoor humidity levels between 40% to 60% will lower the survival rates of viruses. Viruses thrive in very dry (blow 20% relative humidity) or very moist conditions (above 80% relative humidity). Therefore, we always see an uptake of influenza during the winter seasons. The virus simply survives longer on surfaces and has more chances to infect people. By increasing the humidity with a humidifier, the virus does not survive as long.

Q: What happens if you do not change the humidifier filter?

A: There will be scale buildup in the filter and some filters may grow mold and fungus. These harmful materials may then get expelled into the air during the humidifier operation and cause diseases for the users.


Recap Of The Best Filterless Humidifiers

Warm Mist/Cool MistCoverage AreaRunning TimeEase of cleaning
Taotronics TT-AH018Warm + Cool450 q. ft.45 hoursEasy
Levoit LV600HHWarm + Cool753 sq. ft.60 hoursModerate
HuPro PremiumWarm + Cool500 sq. ft.30 hoursEasy
Pure Enrichment MistAireCool250 sq. ft.16 hoursEasy
Vicks Filter-freeCool 400 sq. ft.30 hoursModerate
Best Filterless Humidifiers

Wrapping it up

Out of the 5 products we reviewed, the Taotronics warm and cool mist was our favorite steam humidifier. It strikes a good balance between functionalities, ease of use and noise level. With the ability to control the temperature of the mist, homeowners have with them an all-season humidifier that can work all year round. All in all, this humidifier gets the job done with minimal fuss and is a great deal for homeowners!

The Levoit LV600HH is a close second mainly due to the bottom fill feature that makes it slightly more difficult to refill water. However, the functionalities and features are great and would make a great humidifier.

Click here to get your humidifier now!

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