The Best Filterless Humidifiers are cool mist, except for the Levoit humidifiers. A humidifier without a filter is entirely safe, as modern humidifiers are now manufactured of antibacterial-treated polymers. A humidifier helps to maintain a comfortable amount of humidity by balancing it.
However, to keep these units in good working condition, we recommend using distilled water. This water contains no minerals that can cause white dust problems in your environment, nor does it contain germs released into your environment.
A filterless humidifier was created in response to consumer complaints about the additional costs associated with filter maintenance and filter replacements. Although these humidifiers without filters may function less well than those with filters, the lack of filters does not affect the humidifier’s performance.
Comparison between filterless humidifiers and filtered humidifiers
Types of Filterless Humidifier
Factors to Consider Before Purchasing a Filterless Humidifier
Our Top picks – Comparison Table
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Best in size of coverage area
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Best in size of coverage area
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Check Price | |
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The quietest
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The quietest
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Check Price | |
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Best for the whole house
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Best for the whole house
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Check Price | |
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Amazon bestseller
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Amazon bestseller
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Great for small rooms
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Great for small rooms
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Check Price |
Best Filterless Humidifiers
1. EVERLASTING COMFORT ULTRASONIC COOL MIST HUMIDIFIER
The best feature of this humidifier is the ability to combat cough, allergies, and sinuses. It has also been built specially to counter common low-moisture problems. It is made up of a large water tank of about 6litress. It is an advantage because it can run for six days before a refill is needed.
The controls are on the bottom side since they feature the old system but have an easy-to-use analog knob which allows you to vary your preferences. It has a high mist output rate of about 270ml/hr, which is pretty impressive. It offers the capacity to maintain or increase the humidity level of its surrounding environment.
It has been built to serve quite large rooms, even up to 400 square feet, today’s standard room size. Despite having no filter, it will help you very well and save you the extra cash on filter maintenance and replacement.
To refill the tank is a very simple process. It has an opening at the top that allows you to pour water into the tank quickly. We highly advise the use of distilled water. You can also detach the tank from the other parts .to avoid condensation during refill, cover the bottom part with a towel.
It has a mist output nozzle at the top that has a 360-degree rotational capacity. It enables this unit to point out mist at different locations. This product supports aromatherapy. You can use essential oils to condition your surroundings to smell nice. It operates quietly and has the automatic auto-shutoff feature that makes it go off once the water in the tank is depleted.
PROS
- It has an automatic auto shut-off feature.
- It is compatible with essential oils hence supporting aromatherapy.
- It has a 360-degree rotating nozzle.
- It operates quietly.
- It is effortless to clean.
- It runs for a long time.
- It is suitable for large rooms.
- It has a two-year replacement guarantee.
CONS
- It is suitable with distilled water only.
- It produces cool mist only.
See the: EVERLASTING COMFORT ULTRASONIC COOL MIST HUMIDIFIER
2. VICKS MINI FILTER FREE COOL MIST HUMIDIFIER
This humidifier makes use of Vicks VapoPads instead of a filter. It has a teardrop design with its topside flat rather than pointy, accommodating the mist outlet. It has a small tank of about 0.5 liters that affords a runtime of about 20 hours on the lowest setting.
Its water tank is entirely transparent; hence you can observe the water levels and know the right time to refill. It has an analog control knob just below it that helps to vary the mist output levels. It, however, offers just a single output type in the cool mist.
The nozzle is non-rotatable, unlike the other filter-free humidifiers. One significant advantage is that it operates very quietly and can barely be heard.
Vapopads are almost similar to the regular aromatherapy pads in the other filter-free humidifiers. They allow you to make use of fragrances and scents with the unit. The sweet smells from these fragrances are released effectively alongside the mist, giving your home a good smell.
This unit has an automatic auto shut-off feature. If the water from the tank is depleted, this feature completely turns down the operation of this unit. It helps to prevent the occurrence of fire hazards or permanent device damage.
This humidifier is easy to refill, use and maintain. It, however, cannot serve large spaces but can be perfect for your small room or a tiny workspace. We still recommend the use of distilled water to avoid white dust problems in your home.
PROS
- It has an automatic shut-off feature.
- It operates quietly.
- It operates for a long time.
- It uses VapoPads.
CONS
- It has a small water tank.
- It has cool mist only.
- It is suitable for small rooms only.
See the: VICKS MINI FILTER FREE COOL MIST HUMIDIFIER
3. LEVOIT HUMIDIFIERS FOR LARGE ROOM
This humidifier has a captivating look due to its transparent water tank. The front side has digital displays that act as a human machine that eases communication and control. This display shows the reading of the immediate humidity level in the atmosphere at every point in time.
The water tank is built with 6 liters which is pretty significant hence having a run time of about 36 hours at the lowest mist output rate. This humidifier is capable of producing both cool and warm mist depending on the choice of preference.
As said earlier, the digital display shows the atmospheric humidity level at every moment. The humidistat is what takes the
measurement. This function allows you to choose the humidity level at which you want your humidifier to run.
The water tank is heated to high temperatures to counter micro-bacterial contamination due to the lack of a filter. The bacteria tend to build up in the water tank over time since the water is not filtered before going into the tank. The high temperature kills all organisms that could cause harm m to you.
Ana added an advantage because a remote control option allows you to control the unit from a distance. The noise levels of these humidifiers are shallow since it is ultrasonic. It has an aromatherapy feature that will enable you to add a touch of fragrance and scent to the mist released in your house.
This unit can serve large to medium-sized rooms, and it’s easy to clean and refill since the water tank has an opening at the top side. it is so far the best filterless humidifier for the whole house
PROS
- It operates quietly.
- It is easy to clean.
- It has a large water tank capacity.
- It has a warm and cool mist option.
- A remote can operate it.
- It has a programmable humidistat.
- It is easy to refill.
- It does not require filters.
- It is compatible with essential oils.
- It has a two-year warranty.
- It is germ-free.
CONS
- It is pretty expensive.
- It is suitable for distilled water only.
See the: LEVOIT HUMIDIFIERS FOR LARGE ROOM
4. CRANE ULTRASONIC COOL MIST HUMIDIFIER
It has an award-winning design that makes it stand out. This humidifier is ultrasonic and can increase the content of moisture in the atmosphere effectively. It helps relieve coughs, flu, and cold symptoms hence helping you get a good night’s sleep.
Its teardrop design resembles a teardrop with curves around its sides and a slanting top pinpoint side. There is a 360-degree nozzle that gives you the freedom to decide the mist’s direction on the topside.
Like the other humidifiers here, this unit is filterless, saving you the extra costs of filter replacement and maintenance. It has been designed to serve quite large rooms up to approximately 500 square feet despite being small.
It uses analog control knobs to make it easier to understand and also use. Its price is very affordable. However, it does not
produce a warm but relatively cool mist that is not soothing during the cold seasons. It is a disadvantage since others have both warm and cool mist.
The water tank of this unit is colorless, giving you a chance to monitor the water tank level. The transparent water tank design also enhances its beauty. The unit can run for up to 24 hours without a refill because it has a one-gallon water capacity.
This device is not only easy to maintain but also to clean. It also has an automatic shut-off feature just in case water from the tank is finished. Refilling the tank is also not a challenging task. Similar to other filterless humidifiers, you should use distilled water with this unit to avoid white dust problems in your home.
PROS
- It is filter-free.
- It operates quietly.
- It is very suitable for large-sized rooms.
- It is easy to refill.
- It has a 360-degree mist nozzle.
CONS
- It works with distilled water only.
- It has a small water tank capacity.
- It produces cool mist only.
See the: CRANE ULTRASONIC COOL MIST HUMIDIFIER
5. PUREGUARDIAN H940 ULTRASONIC COOL MIST HUMIDIFIER
This device has a bottle-like shape with a single power button just below the device and a transparent water tank on the top side. The water tank is relatively small, having a capacity of about 0.5 gallons, and the mist output is also near the top. Despite its small size, it has a battery life of up to 30 hours.
The water tank comes with clean silver protection specially treated to fight the growth of microorganisms like mold and mildew. By preventing the development of these microorganisms on the tank surface, the frequency and amount of maintenance are significantly reduced. It also has the option of using a night light depending on the preference of the user. You can turn the night light off.
This unit cannot be used with hard water. We highly recommend the use of distilled water to reduce white dust problems. However, this unit can use a decalcification cartridge that removes impurities like minerals from the hard water. Once the minerals are removed, then you can use the hard water.
Like the other humidifiers on our list, this unit has an automatic shut-off feature that turns the device off if the water tank is empty. In this case, the water refill indicator light comes on and alerts the user.
The moisture rate output is pretty impressive, and it’s able to push out up to 6 liters of moisture per day. It is pretty easy to clean and use too. However, this unit is only suitable for small-sized rooms, making it inconvenient for large indoor spaces.
PROS
- It operates quietly.
- It has an auto shut-off feature.
- It has a water refill indicator light.
- It has a high moisture output.
- It runs for a long time.
- It has a treated water tank surface.
- It has an optional decalcification cartridge.
CONS
- It is only suitable for small-sized rooms.
- It has the cool mist option only.
- It has a small water tank.
See the: PUREGUARDIAN H940 ULTRASONIC COOL MIST HUMIDIFIER
- Filterless humidifiers break water down directly without passing through a filter. It is a great advantage because it saves you the extra cost of replacing the filter and maintaining it. It, however, increases the chances of white dust around your home. It also raises the risk of infections from the water getting into your environment. To avoid the two, we highly recommend the use of distilled water with this humidifier.
- The filtered humidifier has filters that filter the water before it has been broken down into the mist. Doing so, contaminants and minerals that could lead to white dust problems or infections around your home are removed. However, with this product, there is a high cost of frequent maintenance and replacement.
- Impellers
They release cool mist by breaking down the water into tiny droplets and releasing them into the atmosphere. They are also considered to be very child-friendly. They are suitable for rooms with children since they do not involve the heating process.
- Steam vaporizers
This type usually produces warm steam by heating the water into vapor.
- Ultrasonic type
This unit performs its functions precisely like the impellers. The only difference is that it produces mist through ultrasonic vibrations.
These humidifiers are very safe, but we recommend using distilled water to reduce contaminants and white dust. The performance is similar to that of the filtered humidifier, provided your filterless humidifier is not faulty.
BUYING GUIDE
The Room capacity
The size of the room that needs to be served by the humidifier should be taken into consideration. You would not want to purchase a smaller unit to fill a large room since this leads to poor performance and low efficiency of the product.
Auto shut off feature.
Most of these filters fewer humidifiers have small tanks as compared to other regular humidifiers. It means that the water in the tank tends to run dry faster. It, therefore, needs an auto shut-off feature that turns the unit off, preventing overheating the unit and excess power consumption.
The tank capacity
Tank capacity determines the time that the humidifier can run without needing a refill. The small and large ones have their pros and cons, so it all depends on your needs. If you want your humidifier to run longer, then you need one with a large tank. However, if you want one that runs for few hours, maybe at the office, a small tank is the best choice.
The maximum mist output
Maximum mist output refers to how many ounces of mist the humidifier can produce per hour. This number depicts the effectiveness of the humidifier. Most brands usually give you a maximum and minimum mist output in the settings. To get the one with the maximum result, then it is the humidifier with the highest setting.
Maintenance
To maintain your filterless humidifier, you need to ensure that it is always clean. Due to the absence of a filter, your water tank is prone to a buildup of germs and bacteria. Most humidifiers come with cleaning instructions. However, opening the tank is not very easy since most humidifiers have an opening of 3 or four inches. It makes it quite challenging to get your hand inside and clean it.
A 360-degree rotating nozzle
To direct mist to specific positions is an essential feature in your home. Since these humidifiers aren’t for the whole house, this is an important feature that improves the user experience.
Sound level
Every humidifier makes some noise despite its model or type. A humidifier for your bedroom needs to be silent so that it doesn’t disturb your sleep. Generally, the bigger the humidifier, the noisier it is. However, some companies make large humidifiers that are pretty quiet, so it would be better to invest.
A humidistat
A humidistat helps to maintain the moisture level hence restricting it from crossing a particular point. A filterless humidifier with a humidistat is an excellent choice. The units that lack a humidistat tend to produce lots of moisture harmful to your health and damage your home items.
When it comes to filtering fewer humidifiers, you have plenty of options. Some can double up as diffusers others have super affordable personal units, while others can keep humidity going for days. With the above review and buyer guide, we hope you will be able to purchase a filterless humidifier that suits your preferences.