HomeBLOGTop 6 Best Filterless Humidifiers

Top 6 Best Filterless Humidifiers

It is essential that you find a humidifier for your home and that you might want to consider one that doesn’t have a filter.

Here is everything that you need to know about these types of models, including what options are available, what features to look for, and so much more.

Keep reading our comprehensive guide to learn more about these models.

Finding the right humidifier for your home is essential for maintaining optimal indoor air quality and comfort, especially during dry seasons. While many humidifiers come with filters that require regular maintenance and replacement, filterless humidifiers offer a convenient, low-maintenance alternative. Here’s everything you need to know about filterless humidifiers, including top options available, key features to consider, and much more. Keep reading our comprehensive guide to make an informed decision.

Why Choose a Filterless Humidifier?

Filterless humidifiers have several advantages:

  1. Low Maintenance: No filters to clean or replace, reducing the hassle and long-term costs.
  2. Cost-Effective: Save money on filter replacements and enjoy a lower initial investment in many cases.
  3. Ease of Use: Simple to operate and maintain, making them ideal for busy households.
  4. Efficient Performance: Many filterless models are designed to operate quietly and efficiently.

Now, let’s dive into the top six best filterless humidifiers on the market.

Top 6 Filterless Humidifiers 

Ensure that you are looking at some of the top models that are available to purchase, and some of them include:

  1. Best Overall: UCareAir Cool Mist HumidifierUCareAir Cool Mist Humidifier

If only the best on the market did for you, this one would be great since it uses ultrasonic technology for whisper-quiet operating. Due to this device’s quiet operation, it is perfect for being used while sleeping or even in the office while you are working. The water tank can hold 2 liters of water, which means it will quickly and safely run all night.

This can easily handle a room of around 200 square feet and it will automatically shutoff when the level of water is low or if the tank isn’t in place. It also has 2 mist settings that you can pick from to suit your comfort level and requirements, including low and high.


  • Very quiet
  • Can operate for around 10 hours
  • Unit is easy to use and refill


  • Might leak if the lid isn’t properly closed

When searching for the perfect humidifier, the UCareAir Cool Mist Humidifier stands out as one of the top models available for purchase. Renowned for its performance and reliability, this humidifier offers a range of features that make it ideal for both home and office use.

Key Features

The UCareAir Cool Mist Humidifier utilizes advanced ultrasonic technology to ensure whisper-quiet operation. This makes it an excellent choice for use during sleep or in a work environment where silence is essential. Its quiet operation won’t disrupt your sleep or concentration, providing a soothing mist without any distracting noise.

Water Tank Capacity and Runtime

One of the standout features of the UCareAir Cool Mist Humidifier is its 2-liter water tank capacity. This large tank allows the humidifier to run continuously and safely throughout the night. On a full tank, it can operate for around 10 hours, making it ideal for overnight use without the need for frequent refilling.

Room Coverage and Safety Features

The UCareAir Cool Mist Humidifier is designed to effectively humidify rooms up to 200 square feet. This makes it suitable for bedrooms, small living rooms, and office spaces. Additionally, it comes with an automatic shutoff feature that activates when the water level is low or the tank is not properly in place. This safety feature ensures that the humidifier does not overheat or get damaged, providing peace of mind for users.

Adjustable Mist Settings

To cater to different humidity needs and personal preferences, the UCareAir Cool Mist Humidifier offers two mist settings: low and high. These settings allow you to customize the level of mist output to suit your comfort requirements, whether you need a light mist for a small room or a heavier mist for a larger space.


The UCareAir Cool Mist Humidifier is a top-notch choice for anyone seeking a reliable and efficient humidifier. Its combination of user-friendly controls, quiet operation, and effective mist output makes it a standout option. Whether you need a humidifier for better sleep, improved air quality in your office, or overall comfort, this model delivers excellent performance and convenience. If you want a humidifier with top features and ease of use, the UCareAir Cool Mist Humidifier is an excellent investment.

Prices pulled from the Amazon Product Advertising API on:

  1. Runner Up: Pure Enrichment MistAire XL HumidifierPure Enrichment MistAire XL Humidifier

Another great option that will ensure that you have plenty of moisture in the air in your home is this model. It will work very quickly, and it is extremely quiet, which makes it perfect for your bedroom or even the office. If the water tank level is low, then the device will turn itself off, and it also does the same thing when the tank is removed.

It has a nightlight that is great for kids or anyone who prefers some light while they are falling asleep. The mist nozzle can be rotated so you can reach any corner of the home no matter where it is placed in a small to medium room.


  • Simple to clean and refill
  • 2 different speeds to choose from
  • 360° misting nozzle allows the machine to reach all corners


  • Has to be cleaned often to avoid build-up from collecting

For those seeking to maintain optimal humidity levels in their home, the Pure Enrichment MistAire XL Humidifier is an excellent choice. This device excels in quickly adding moisture to the air while operating with minimal noise, making it ideal for bedrooms and offices alike.

One of its standout features is its automatic shut-off capability. When the water tank runs low or is removed, the humidifier powers down to prevent any potential damage, ensuring both safety and convenience.

Features and Benefits

The MistAire XL includes a built-in nightlight, making it a great addition to children’s rooms or for anyone who prefers a bit of illumination while drifting off to sleep. The 360° mist nozzle is particularly versatile, allowing you to direct the mist to any corner of the room, ensuring even coverage in small to medium-sized spaces.


The Pure Enrichment MistAire XL Humidifier is a cost-effective solution for maintaining humidity levels in your home. While it does require frequent cleaning to avoid build-up, its ease of use, safety features, and versatility make it a solid choice for anyone looking to improve their indoor air quality without breaking the bank.

  1. Best for Large Home: LEVOIT Humidifiers for Large RoomLEVOIT Humidifiers for Large Room

If you have a large home and need something designed to handle the entire family, this model should be checked. It can provide both cool and warm mist with 3 different levels, and it will work extremely quickly in increasing the humidity levels. You can see the current humidity level in the home from the display, which has the touch controls, and there is also a remote.

This model can work for around 36 hours straight when used on the low misting levels and it gives an output of 500 ml per hour.

Key Features

  1. Dual Mist Options: The LEVOIT humidifier offers both cool and warm mist settings, allowing you to customize the humidity to your preference. This flexibility is particularly useful in different seasons and climates.
  2. Quick Humidity Adjustment: With the ability to increase humidity levels swiftly, this humidifier ensures a comfortable environment in no time. The three misting levels provide the right amount of moisture based on your needs.
  3. User-Friendly Display and Controls: The clear display shows the current humidity level in your home, making it easy to monitor and adjust settings. The touch controls are intuitive, and the included remote allows for convenient operation from a distance.
  4. Long-lasting Operation: On low misting levels, the LEVOIT humidifier can run for up to 36 hours straight. This extended operating time means less frequent refilling, providing continuous comfort.
  5. High Output: With an output of 500 ml per hour, this model is capable of maintaining optimal humidity levels even in larger spaces, ensuring every corner of your home benefits from improved air quality.


  • Refilling and cleaning of the tank is easy
  • Large capacity lets it operate for 36 hours in a row
  • Can choose the exact humidity level you want


  • High maintenance
  • Can leave some white dust after operation


For those seeking a reliable, high-performing humidifier with plenty of control options, the LEVOIT Humidifier for Large Rooms is an excellent choice. Its ability to provide both cool and warm mist, combined with easy-to-use controls and a long operational time, makes it perfect for large homes. Despite requiring some maintenance and potentially leaving a bit of white dust, its benefits far outweigh these minor drawbacks. Invest in the LEVOIT humidifier for a more comfortable and healthier living environment.

  1. Everlasting Comfort Cool Mist HumidifierEverlasting Comfort Cool Mist Humidifier

This is a great model that you can look at if you need something that can help increase the humidity levels in the home. It has a large water tank of 6 liters, and it has a compartment for essential oils and a built-in night-light. This model is designed to handle a room of around 400 square feet, and it has a powerful output of 270 ml of mist every hour.

It also will turn itself off when the water gets low so that the machine doesn’t get damaged nor does the tank. The rotating nozzle can reach 360°, which ensures all parts of the room can be easily reached.

Key Features

  • Large Water Tank: This humidifier comes with a substantial 6-liter water tank, ensuring long hours of continuous operation without frequent refills.
  • Essential Oils Compartment: Enhance your home’s ambiance by adding essential oils to the built-in compartment, providing both humidity and a pleasant aroma.
  • Built-in Night-Light: The integrated night-light adds a soothing glow, making it a great addition to bedrooms or nurseries.
  • Coverage Area: Designed to effectively humidify rooms up to 400 square feet, making it ideal for larger spaces.
  • Powerful Output: With an impressive output of 270 ml of mist per hour, it quickly and efficiently increases humidity levels.
  • Automatic Shut-Off: The humidifier will automatically turn off when the water level is low, preventing damage to the unit and ensuring safety.
  • 360° Rotating Nozzle: The rotating nozzle ensures that the mist is evenly distributed throughout the room, reaching all areas effectively.


  • Has a long running time
  • Automatic shut-off
  • Quiet operation


  • Can be hard to clean
  • Leaks can be common


The Everlasting Comfort Cool Mist Humidifier is a stylish and functional addition to any home, particularly well-suited for larger rooms. Its blend of a high-capacity tank, essential oil compatibility, and efficient mist distribution makes it a versatile choice for those seeking to improve their indoor air quality. However, potential buyers should be mindful of the maintenance required to keep it in optimal working condition and the possibility of leaks. Overall, this model offers a great balance of performance and aesthetics, making it a worthy consideration for your home humidification needs.

Prices pulled from the Amazon Product Advertising API on:

  1. Crane Drop Ultrasonic Cool Mist HumidifierCrane Drop Ultrasonic Cool Mist Humidifier

For those who want something that has a great design and can effectively and safely increase the moisture level, go ahead and look at this model. The design is beautiful, and there is a 360° mist nozzle so you can decide what direction you want it to go. It can handle a room of around 500 square feet, which means it will work well for an apartment or small home.

It uses analog knobs for control so you can easily use the device and the majority of the water tank is made with transparent plastic so you can easily see when the water level is low.

Key Features

Design and Usability The Crane Drop Ultrasonic Cool Mist Humidifier is not just functional but also aesthetically pleasing. Its elegant design complements any room decor, while the 360° mist nozzle allows you to direct the mist wherever it’s needed most. This feature is particularly useful for ensuring even distribution of moisture in rooms up to 500 square feet, making it ideal for apartments or small homes.

Control and Convenience Operating the humidifier is straightforward, thanks to its analog control knobs. These knobs allow you to easily adjust the mist output to your preferred level. Additionally, the mostly transparent water tank lets you quickly check the water level, so you know when it’s time for a refill.


  • 360° misting nozzle to reach all corners of the home
  • Great for large rooms
  • Quiet when operating


  • Only does cool mist
  • Water tank capacity is small


The Crane Drop Ultrasonic Cool Mist Humidifier is a great choice for those who need a compact yet effective humidifier. It’s particularly suited for use in bedrooms, living rooms, or small apartments where maintaining optimal humidity levels is crucial. Its quiet operation ensures it won’t disturb your sleep or daily activities, and the 360° nozzle provides flexibility in directing the mist. While the water tank capacity may be smaller than some other models, it’s sufficient for several hours of continuous use, making it perfect for nighttime operation.

If you’re looking for a stylish and efficient humidifier to enhance your indoor air quality, the Crane Drop Ultrasonic Cool Mist Humidifier is a top contender.

  1. Honeywell HUL535B Cool Mist HumidifierHoneywell HUL535B Cool Mist Humidifier

Another compact model that you can look at that would be great for anyone with a small amount of space is this one. If you put it on the lowest setting, it can operate for around 24 hours due to the small tank. The design is good, and the water tank is transparent, so you can easily tell how much water is left.

The controls are done with analog knobs that allow you to pick from the various speeds while controlling the mist level. It will also put the auto-shut-off feature into the use of the water level becomes low or if the machine is overheating.


  • Easy to refill
  • Maintenance is easy
  • Automatic shut-off


  • Doesn’t have aromatherapy support


If you are looking to save some money and not worry about maintenance as much, you should ensure that this model is on your list.

Filterless Humidifiers Buying Guide

You should always make sure that you are getting the best of the best when it comes to the filterless humidifiers, so keep reading on to find out more about choosing the right one.

What is a Filterless Humidifier, and How Does it Work?

Advancements in technology are constantly being made, so humidifiers are an important part of any home today. These machines don’t have a filter, which makes them cleaner and healthier for anyone around them, which is one reason they are trendy. These devices increase the air’s moisture levels while keeping it clean through the use of advanced technology for cleaning. They don’t make any noise, and they would be able to use the water in the tank to create a mist that is then pushed out into the air.

How They Work

Filterless humidifiers utilize various technologies to maintain air quality and humidity levels:

  1. Ultrasonic Technology: These humidifiers use high-frequency vibrations to break water into a fine mist. The mist is then dispersed into the air, increasing humidity levels without the need for a fan, making the operation virtually silent.
  2. UV-C Light: Some filterless humidifiers incorporate UV-C light to kill bacteria and viruses in the water before it is dispersed, ensuring the mist released is clean and safe to breathe.
  3. Electrostatic Charge: This method involves charging water droplets so they can bind to impurities and neutralize them before releasing the purified mist into the air.

What to Consider Before Buying

There are also a few things that you need to consider before purchasing any device, which includes some of the top tips. These tips can help you with making the right decision, so a few of them has:

  • Room Capacity – You should consider the size of the room that the specific models will handle. Think about the room’s current size that you want it to be placed in, and then think about if the model you are looking at can handle that. You want a machine that will be recommended for the room capacity so it will be efficient.
  • Water tank capacity – Another thing that you need to think about is the water tank’s capacity. This is important since you should consider how often it will need to be refilled, along with how long it will be able to operate. You also need to think about the maintenance required for the water tanks and how often you would need to undertake it.
  • Humidistat – This is another important piece of the machine, which maintains the current moisture level. This will tell the device what point it shouldn’t pass since you will customize this. Make sure that you choose one with this since it can determine the moisture levels in the air.
  • Sound level – The final factor you need to think about is the noise level since almost every model will have some noise. If you are using these in your office or bedroom, you want to choose a model that won’t be overly loud while you are sleeping.

These are only a few of the top tips that you should make sure you are considering when you are picking a model. The more you know, then the easier it will be for you to make the right decision.

Benefits of Using a Filterless Humidifier

Another thing that you must know about is the various benefits of purchasing and using one of these models in your home. Some of the top advantages to learning about includes:

  • Quiet operation – The models without a filter are much quieter since they don’t have fans that are operating. This means that you can find a wide variety of models that would be nearly silent thanks to technological advances.
  • No changing of filters – Another great benefit of buying one of these types is that you don’t have to change them. This will not only save you money, but it also means there is less time required for maintenance over time. The only thing you would need to do for these devices has washed the tank regularly.
  • Energy-efficient – The filter-based humidifiers often consume more energy than the filter-free ones due to the powerful fans. However, if you choose the filter-free model, you will see a lower electricity bill since they don’t use as much energy to operate.

These are only a few of the top benefits you must be aware of when considering and trying to decide upon the right filterless humidifier for your home.

Types of Filterless Humidifiers

There are plenty of types of humidifiers that you need to be aware of, and they come in 2 types, including warm and cool mist models. Here is what you need to know about these types, including:

  • Warm mist – These models should be operated carefully, especially when there are children around. This is because the warm mist models use the water to be boiled before it is placed into the machine. This would then create hot or warm steam, which could cause burns if touched. This is a great option if you want a warm mist, but not if you have children who like to touch everything.
  • Cool mist – These are the opposite of warm steam, and they don’t require warm or boiling water in the tank. You would be able to put any water into the tank, but it is recommended that you use distilled water. These would create a mist out of the water that would then be pushed into the air, which increases the humidity levels.

Ensure that you are looking at all of these models and what is available to make the final decision. If you are aware of the available types, you can figure out and see which one fits your needs the best.

Prices pulled from the Amazon Product Advertising API on:


  • What do I need to do to clean the humidifier?

Keeping your device clean needs to be a top priority since you want to have healthy and clean air. You should ensure that you have white vinegar on the handle along with running water and then disassemble the machine. Wipe the outside down with some water, which includes the filter-based area.

The tank also needs to be cleaned at least 1 time every month if you regularly use it. Pour a small amount of white vinegar into the tank so the bottom and corners are covered, and then let sit for around 30 minutes. If there are parts that have build-up, you can wipe them down with a cloth before letting the entire tank dry before usage.

  • Can I leave the humidifier running all night?

It will be extremely safe to leave these running overnight, especially if you pick one with an automatic shut-off feature. This would turn the machine off if there is a low level of water or overheating. Ensure that you are placing it in a location where it won’t create damage due to the mist or tip over during the night.

  • Can I use some tap water in the machine?

You should never use tap water in these devices, but instead, you want to use distilled water. The tap water can be challenging and have debris and build-up already in it that can cause problems. If you don’t use distilled water, then you might end up damaging the device when it is being used.

  • Where is the best location to put my machine?

If you are uncertain about where to put it, you should place it in a central location. Ensure that wherever you are putting it, it isn’t on top of wood since it can wrap it. Also, make sure not to place it on carpet or any other fabric, but instead put it on a plastic stool or even on a side table. You also need to ensure that the area you choose is sturdy and won’t tip over easily, which could cause a big mess if the tank is opened or spilled.


Make sure that you are thinking long and hard about which filterless humidifier you will choose, especially if you haven’t bought one of these machines before. You should ensure that you determine what room capacity the various models can handle and what the water tank capacity is. Also, make sure that you pick one that will operate quietly when it is on and that would be easy to clean and even refill when the water tank is empty.

Prices pulled from the Amazon Product Advertising API on:
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