The 7 Best Humidifiers Without Filters – (Reviews & Guide 2020)

best humidifiers without filters in baby nurseryWhy would one look for the best humidifiers without filters? After all, so many individuals praise filters – so, it seems odd when filterless units become popular. Well, a device without filters can operate just as amazing as one with filters. Not having a filter doesn’t decrease the performance of the device in any way.

Moreover, a humidifier with a filter will require constant maintenance as you’ll have to either wash the filter or replace it. So, if you’d rather skip the additional maintenance part and deal with the humidifier alone, we are here to help you.

Best Humidifiers without Filters Comparison Table

Last update on 2020-10-19 / Affiliate links / Images from Amazon Product Advertising API

Below, you will find reviews of multiple humidifiers that are going to help you choose a suitable product for your home. Additionally, you will have a buying guide with useful information so you can look at the best features when making your choice. Let’s get started!

Top 7 Best Humidifiers without Filters Reviews (Updated List)

1. Crane Drop Ultrasonic Cool Mist Humidifier – Best for Medium-Sized Rooms

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Crane Drop Ultrasonic Cool Mist Humidifier, Filter...
  • VARIABLE SPEED SETTINGS: No matter the humidity level you would like to achieve we've got you covered. The Crane drop cool mist humidifiers offer variable output settings and an adjustable 360 degree mist lid making it easy to send the mist in any direction. The mist output is perfect for humidifying rooms up to 500 square feet, which is a standard medium to large sized room
  • WHISPER QUIET: Crane's drop humidifier runs whisper quiet which makes it the perfect option for light sleepers, kids, and especially babies. This humidifier is made with clean control anti-microbial material which reduces mold and bacteria growth by up to 99.96%
  • ONE GALLON TANK: The 1 gallon tank fits under a standard kitchen or bathroom sink, and has an easy to carry handle at the top. Our humidifiers are filter free, but we offer an optional demineralization filter (HS-1932) for those with excessive minerals in their water that screws directly into the tank
  • 24 HOUR RUN TIME: The drop humidifier runs up to 24 hours, so you don't have to worry about running it through the night. It also is equipped with an automatic shut-off safety feature that turns the unit off when the water runs out
  • EASY TO CLEAN: Crane's easy to clean humidifier design features a detachable bottom fill tank, which is recommended by health professionals for promoting clean humidifier habits. The water level sensor and cap also are removable, giving you access to clean the entire base. We recommend cleaning the humidifier based on frequency of use and provide many educational resources on how to clean your humidifier

Last update on 2020-10-19 / Affiliate links / Images from Amazon Product Advertising API

Are you looking for a filterless humidifier that will not affect the quality of your sleep? Why not pick this whisper-quiet unit then? This product is amazing for those who want to ensure the silence in the room while they’re resting. Thanks to that, it’s a great option for light sleepers, babies, or kids.

A feature that takes the spotlight is definitely the 360-degree adjustable mist lid. It will make sure the room gets evenly humidified, so you can enjoy the moisturized environment you require. If your room is up to 500 square feet large, the humidifier will do a great job at maintaining humidity levels.

It comes with a one-gallon tank that will be a piece of cake to carry from a place to another, all thanks to the easy handle it has at the top. Due to the spacious tank, the unit can run up to 24 hours, meaning you can go on with your day without worrying that the water levels will decrease immediately.

Pros

  • Great for medium-sized rooms
  • Quiet operation
  • The design makes it very easy to clean
  • Can run for a good amount of time without needing to be refilled

Cons

  • Mist may start leaking down the sides of the top cone cap

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2. GENIANI Ultrasonic Cool Mist Humidifier – Best for Night Use

GENIANI Ultrasonic Cool Mist Humidifier - Best Air...
  • NO NOISE - JUST FRESH AIR. Geniani humidifiers fills your room or office with clean and fresh air and makes your work and daily activities much more pleasant and efficient.
  • LARGE WATER TANK. Even a large room or office (on the high mist setting) will be full of fresh and clean air for 12 hours. If you have a smaller room (on the low setting), 3 liters is enough to produce air moisture up to 24 hours.
  • NIGHTLIGHT FOR BETTER SLEEP. Geniani cool mist humidifier helps you have a better relax at night with the soft light.
  • AUTOMATICALLY TURNS OFF. If during the night a humidifier happens to be out of the water, you can sleep tight - it automatically shuts down and turns on after you refill it.
  • 360-DEGREE MIST NOZZLE. It helps you decide in which direction you would like the moisturized air to be spreaded.

Last update on 2020-10-19 / Affiliate links / Images from Amazon Product Advertising API

Getting fresh and purified air in your house is quite easy with this humidifier. The product does a great job of evenly moisturizing the designated space while making the entire atmosphere safer. Being ETL certified, this product conforms to U.S. safety standards.

If you’re a light sleeper, then you may fall in love with the unit. Depending on the amount of light you need in your room while you sleep, this product can meet your requirements It allows you to either sleep in complete darkness while it’s operating, or offer you dim light.

Filling the tank will be a piece of cake too. All you have to do is unscrew the cap and start filling it with water from the sink. This makes sure you will never struggle to refill the 3L water tank.

Moreover, the mist level can be adjusted as well. That being said, you can control how much mist is being released into the atmosphere so you can meet your needs. The 360-degree mist nozzle will also help you decide where you would like the mist to be released.

Pros

  • Even coverage when moisturizing the room
  • It can turn off automatically when it runs out of water
  • Amazing for use during the night
  • Filling the tank will be very easy

Cons

  • Some humidifiers will start leaking

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3. Crane Adorables Ultrasonic Cool Mist Humidifier – Best for Children Rooms

This is a great option if you have children and need a humidifier for their room. The first noticeable thing about this unit is the design – with its animal shape, you can rest assured that it will make a great decoration for your child’s room. You can pick from multiple animal designs to match the theme of the room, but also the child’s preference.  

When it comes to the features, being whisper-quiet is another thing to consider. Especially when it comes to kids, you want them to have a nice, uninterrupted sleep, and this humidifier will help with that while moisturizing the atmosphere. It’s not only quiet but it also gives you light options, so the sleep isn’t ruined by the light it generates.

And believe it or not but despite the unique design, the tank is easy to clean. You only have to detach the tank and remove the water level sensor and the cap, and you’ll have access to every corner of it. Thorough cleaning will be ensured this way.

Pros

  • Very easy to use
  • The operation is whisper-quiet
  • Allows for proper tank cleaning
  • Has variable mist levels

Cons

  • The plastic used in the construction is not the most durable

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4. Vicks Filter-Free Ultrasonic Visible Cool Mist Humidifier – Great for Cough and Congestion Relief

Vicks Filter-Free Ultrasonic Visible Cool Mist...
  • VICKS FILTER-FREE COOL MIST HUMIDIFIER: This cool mist humidifier won't need replacement filters, & it's 1.2 gallon tank can give up to 33 hours of soothing mist. Vicks cool mist humidifier is quiet, making it great for your bedroom or baby's nursery
  • VICKS HUMIDIFIERS FOR BABIES, KIDS, ADULTS: Humidifiers diffuse moisture into the air, and many women and men find that a humidifier for the bedroom becomes an essential part of a good nights sleep when the air is dry, in allergy season, or when sick
  • COUGH & CONGESTION RELIEF: When you or your kid has a cold, it can be difficult to sleep through the night. Humidifiers, vaporizers, & steam inhalers provide temporary relief from coughing & congestion, so your rest won't be as disturbed by coughing fits
  • VICKS VAPORIZERS, HUMIDIFIERS, & STEAM INHALERS: Moisture & humidity offer temporary relief from cough & congestion due to colds or allergies. Vicks line of humidifiers & steam inhalers, help you breathe easier wherever you are, from the bedroom to office
  • HUMIDIFIERS FOR BEDROOMS, DESKS,TABLES: Our humidifiers & vaporizers help you breathe better wherever you are.

Last update on 2020-10-19 / Affiliate links / Images from Amazon Product Advertising API

Cough and congestion can be pretty annoying, and they will prevent you from having a good night’s sleep. This is why having this humidifier may be a life-changer – thanks to the humidifying feature, the unit will relieve these symptoms and make sure you wake up fully rested the next morning. The relief will be temporary, and it can improve the quality of your sleep if you keep it running.

Touted as the best humidifier cough and congestion, this unit is great for both adults and children. Whenever the air is dry or you have an allergy, the humidifier will prove to be of great help.

You can even enjoy a soothing vapor experience as there is a scent pad door. This will allow you to fit the Vicks VapoPads inside, which will improve your experience and make the environment even more comfortable to be in.

The tank opening is wide and ensures you can reach every side of the tank to clean it.

Pros

  • Great relief for cough and congestion
  • Easy to see the water level through the translucent tank
  • Variable humidity control
  • Easy to clean

Cons

  • Deposits may gather inside the unit if you don’t use distilled water

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5. Pure Guardian H910BL Ultrasonic Cool Mist Humidifier – Best for Small Rooms

Pure Guardian H910BL Ultrasonic Cool Mist...
  • COOL MIST HUMIDIFIER: The PureGuardian H910BL Ultrasonic Cool Mist Humidifier guards against dry air in the home and is perfect for those suffering form colds, allergies and dry skin. Optimize your comfort with soothing glow and high cool mist settings
  • ULTRASONIC TECHNOLOGY: The H910BL disperses a soothing, cool mist into the air and is ultra-quiet, making it ideal to have on while you sleep; silver clean protection fights the growth of mold and mildew on the surfACe of the water tank
  • GREAT FOR SMALL ROOMS: The .21 gallon tank provides up to 14 hours of run time and is perfect for 210 sq. Ft. Rooms; the slender desktop design is perfect for a nursery or desktop features an optional night light, great for kids rooms
  • Additional features: the ultrasonic cool mist humidifier includes a directional mist nozzle, auto shut off when empty, and a low water indicator light illuminates when to refill the tank; no evaporating pads, sticks or filters to clean or replace
  • Pure Guardian: by Guardian Technologies offers a full range of small appliance based solutions for happier and healthier lives at home, focused on creating powerful, safe and innovative technologies to help facilitate healthier, happier home environments

Last update on 2020-10-19 / Affiliate links / Images from Amazon Product Advertising API

For people who have small rooms and don’t want to overly-moisturize the area, Pure Guardian has just the right product. This small humidifier is suitable for rooms up to 210 square feet, and it can run for up to 14 hours. The .21-gallon tank will allow this to happen.

This is a cool-mist humidifier, which is amazing if you’re suffering from allergies or colds. The vapors will make it easier for you to breathe and will thus increase your comfort. More than that, since it produces a cool mist, it also has the ability to cool your room when the temperature gets too hot.

You have the option to use aromatherapy as well. There’s an aromatherapy tray where you can add some drops of essential oil to improve your experience. This will help you relax while you’re at home after a long, exhausting workday.

When the tank gets empty, the auto shut-off feature will make sure the unit stops running for your own safety. It also protects the humidifier this way.

Pros

  • It improves your home environment
  • Amazing for allergy or cold relief
  • Safe to use
  • Great for small rooms

Cons

  • You can’t adjust the output level

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6. Honeywell HUL535B Cool Mist Humidifier –Ultrasonic Humidification Technology

Honeywell HUL535B Cool Mist Humidifier Black...
  • COOL MIST HUMIDIFIER: This cool mist humidifier quietly produces a fine, visible cool mist that helps make you & your home more comfortable. It's designed for medium sized rooms, with ultra quiet operation, variable output settings, & no filters required
  • COOL MOISTURE FOR HOME OR OFFICE: This humidifier features a variable settings & a direction mist outlet. It can run up to 24 hours per filling, & features auto shut-off when the tank is empty. Its compact size makes it ideal for desktops or nightstands
  • HONEYWELL HUMIDIFIERS: Humidity levels in your home between 40-60% can make the air feel warmer & improve your breathing comfort, sleeping, nasal congestion & dry skin. Dry air can cause static electricity, damage wooden furniture & irritate health issues
  • HUMIDIFIERS FOR BABIES, CHILDREN, ADULTS: Humidifiers diffuse moisture into the air, and many find that a humidifier for the home, bedroom or nursery becomes an essential part of a good nights sleep when the air is dry, in allergy season, or when sick.
  • HONEYWELL QUALITY: Improve humidity levels in your home & improve your comfort with a Honeywell humidifier.
  • Uses Protec Continuous Cleaning Cartridge: PC2V1

Last update on 2020-10-19 / Affiliate links / Images from Amazon Product Advertising API

If you’re looking for easy filling and cleaning, then this may be the product to turn to. It has a large tank that makes filling and cleaning it a piece of cake. This way, you will make very little effort to remove all the dirt and debris that accumulates on the surface.

A medium-sized room is just ideal for this device. A directional mist outlet will take care of the humidification process by releasing moisture in every part of the room, leaving nothing untouched. As such, dry air will be a thing of the past, and your comfort and breathing will be greatly improved.

The unit can run for up to 24 hours so you will not have to constantly refill the tank. It will keep running until it eventually runs out of water and shuts off. The auto shut-off feature is amazing in making sure the humidifier doesn’t damage itself and will also prevent potential accidents.

Pros

  • Easy to fill and clean
  • Amazing for medium-sized rooms
  • The tank opening is wide, allowing for proper cleaning
  • Ultra-quiet operation

Cons

  • The suction seal on the water reservoir cap is hard to remove without making a mess

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7. Homech Quiet Ultrasonic Humidifier – Best Budget Filterless Humidifier

Homech Quiet Ultrasonic Humidifier,Cool Mist...
  • Peace and Quiet: Ultrasonic humidifier with weaken water flow technology and dustproof sponge lowers the noise level to 26dB for quiet humidification without disturbing your study, working. And all night mist makes you have a pleasant and quiet sleeping
  • Clean and Healthy: Wide opening up to 92mm for simple cleaning and filling; the fan rotates for 3 minutes after the fog is stopped, and the mist guide tube is drained to prevent the pipe from becoming moldy
  • Large Capacity and Long lasting: Holds an impressive 4L of water allows for more than 50 hours of continuous use in 60 ml/hr. It can reduce the trouble of adding water, and you don't have to worry about the discomfort caused by drying when you sleep
  • 360° Degree Humidity Coverage: 360°degree rotating nozzle at a height of up to 24 inches ensures an even level of humidity distributed in your home. With adjustable level and maximum mist output up to 300ml/hr. The mist particles are even and fine, let you feel comfortable. The ultrasonic air diffuser is ideal for bedroom, office, babies and large room and can help you to fight with dry skin, wrinkles, insomnia and nose bleeds
  • Powerful Multiple Protection Keep Safe and Stable: Auto shut-off when the water's drained or when water tank lifted; dry burn protection ; IC board waterproof with nanometer layer; dustproof sponge prevents dust from entering via the base for a nursery humidifier baby with a lengthy life span and ensure a safe environment

Last update on 2020-10-19 / Affiliate links / Images from Amazon Product Advertising API

Don’t let the low price of this product fool you – despite this, it actually has a lot of things to offer. One of them is the 360-degree humidity coverage ensured by the rotating nozzles. They will make sure the entire room gets covered by the released mist, which is amazing when you don’t want any spot to be left out.

The tank has a capacity of 4L, which ensures the unit will run for more than 60 hours of continuous use. This way, constantly checking the humidifier will not be necessary. When the water decreases, the unit will shut-off by itself, thus preventing potential damage to the device.

This ultrasonic humidifier has a noiseless operation. The noise level is reduced to 26Db – so, you can use it whenever you want, even while you’re trying to sleep.

Pros

  • Safe to use thanks to the auto shut-off feature
  • The tank has a wide opening allowing you to maintain it properly
  • Large capacity that allows the device to run for a long amount of time
  • Carry handle that makes it easy to take from a place to another

Cons

  • Mold can occur if you don’t clean it frequently

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Best Humidifier Without a Filter Buying Guide

Who Needs a Humidifier Without a Filter?

best humidifiers without filters in workHumidifiers without filters are great options for people who don’t have the time to deal with constantly checking the filters of these units. Filters must be washed to remove the debris they accumulate over time. In case the filter is not a washable one, you have to throw away the used one and buy new filters.

That being said, you are constantly stuck having to check the filter of the unit to make sure everything’s alright and the vapors produced are clean and safe.

Additionally, filters can be quite a costly investment. Sometimes, filters for a specific humidifier model can be very expensive, which is not great for those on a budget. And even if the price is not that high, constantly buying new filters is still costly.

That’s why humidifiers without filters are so amazing – they don’t require any further investment.

Moreover, people who don’t suffer from any allergy might not have to use filters. So, a filterless unit will not cause any harm.

How Does a Filter-Free Humidifier Work?

A filter-free humidifier is a unit that lacks a filter. In order for it to work, it will pass the water from the tank through the operating system. It pretty much breaks the water molecule down, all depending on the type of device. After that, the water will turn into mist and will be sent to the air, moisturizing it. This will help with a lot of conditions such as cough, congestion, dry skin, and more.

For them to function properly and maintain their good condition and durability, these units will come with built-in purifying systems. These will take care of the allergens and bacteria that may accumulate inside the device – preventing them from being sent into the air when the mist is released.

So, a humidifier without a filter will work similarly to a humidifier with a filter. The only difference is that the purifying process doesn’t involve a filter.

Filtered vs. Filterless Humidifiers: What Are the Differences?

There are some differences when it comes to filtered and filterless humidifiers.

First of all, a filtered humidifier will always require you to change the filters, which is not only annoying for busy people but it’s also a costly investment. However, some units use reusable filters which are a better alternative in the long run if you want to save some cash.

Filtered units use filters to clean the water of allergens and bacteria before releasing it into the atmosphere. But they tend to cause more noise compared to a filterless unit.

Now, when it comes to filterless humidifiers, you don’t need to check the filters all the time to see if they need to be changed or washed. Not to mention that you will also avoid the costs that come with having to buy new filters all the time.

However, filterless humidifiers require maintenance when it comes to other parts. This is because they use other methods to get rid of the bacteria and dirt. You will have to use disinfectants and cleaning solutions to eliminate any dirt or debris that gathers inside the device over time. From that point of view, a humidifier with no filter will require more maintenance.

Types of Humidifiers that Work Filterless

When shopping for the best humidifiers without filters, you will come across multiple types.

  • Steam Vaporizers

Steam vaporizers work by heating or boiling the water in order to release it into the environment. The water has to reach very high temperatures to turn into mist. What’s great about them is that because they heat the water, the bacteria will be killed during the process. From this point of view, they are safer than cool-mist humidifiers.

However, they can get very hot when they’re being used so this makes them very risky for houses with pets or children.

  • Ultrasonic Humidifiers

Ultrasonic humidifiers contain a diaphragm that vibrates when the ultrasonic frequency is being produced. When this happens, the water droplets will turn into mist when being released. Ultrasonic units can be cool mist or warm-mist humidifiers, or units having both features available.

Out of all the types of humidifiers, this one uses the least amount of energy, and it’s also the quieter option due to having no fans.

  • Impeller Humidifiers

Impeller humidifiers can create mist thanks to a rotating disk that throws water at a diffuser. This will break the water into droplets that will then be released into the atmosphere.

Although they are great and don’t consume a huge amount of energy, these humidifiers are not as popular as they used to be. They also tend to cause some noise because of the rotating discs. Moreover, they require constant maintenance as bacteria and mold will form very easily.

How Do You Clean a Humidifier with No Filter?

Cleaning a filterless humidifier

Cleaning your humidifier is a must considering there is no filter to prevent the dirt from reaching the inside of the unit. Although there are other things that stop the bacteria from spreading immediately, cleaning is still required. It’s essential to rinse it once per day or every few days.

First things first, you have to unplug the unit and then disassemble it. Remove the tank and ensure no water is left in it. Once the water tank is removed and empty, wash it properly. You can use three cups of vinegar to get rid of all dirt and debris inside.

You can let it sit for around an hour, but you should also take a scrub brush and eliminate any potential grime you find on the surface. Make sure you only use vinegar and no other type of cleaner.

Disinfect it by pouring a mixture made of a teaspoon of bleach and a gallon of water. After letting it sit for a while, wash it properly, and get rid of any substance you used to clean it.

Reassemble the unit, fill the tank with water and start using it again. The mist generated will be clean and bacteria-free now.

If you want to maintain it for longer, make sure to use distilled water and clean and drain the unit before you store it. This will make sure you don’t have to wash it that often.

Best Humidifiers without Filters FAQs

Here are some common questions about these humidifiers.

1. Will the air be healthy to breathe if I don’t use a humidifier with a filter?

Yes, the air is healthy if you don’t use a humidifier with a filter because filterless humidifiers still use different methods to maintain safety. However, you should clean the unit regularly because there may be dirt and debris that gathers a lot over time and can become unsafe. If you clean the humidifier regularly, then you can keep your house’s air clean.

2. Are filter-free humidifiers safe?

Humidifiers without filters are perfectly safe, so you don’t need to have any safety concerns whatsoever. Most of the time, these units are made of plastic. As such, they went through antibacterial treatments that made them safer to use overall. Of course, this also depends a lot on how often you clean your tank and unit.

3. Can I use regular tap water for my filter-free humidifier, or is only distilled water allowed?

Regular tap water can be used for your humidifier as long as it’s not too high in mineral content. But if you live in an area with water high in minerals, you will notice deposits on the tank, which is not healthy.

Distilled water is your best option, because it’s safer overall and will maintain the durability of the unit for longer.

4. What is white dust and what can I do about it?

White dust is what you see on your humidifier after using water high in minerals. When the unit is working, this dust can be released into the air, which can be quite a nuisance. You will see it on the furniture too – so, you will have more cleaning to do.

You should use distilled water to prevent such things from happening.

5. How often should I change the water in a filter-free humidifier?

The water should be changed every day. After it runs out, the tank should be rinsed thoroughly and only then filled with fresh water.

Conclusion

Picking the best humidifiers without filters is not easy, but we hope we were able to help you. You can use the buying guide when shopping for your unit, or just pick one from the reviews. You just have to make sure that it meets all your needs and preferences.