Best Filterless Humidifiers for 2020: Our Favorites

If you’re in a hurry and just want to know our top pick, it’s the Pure Enrichment MistAire XL Ultrasonic Cool Mist Humidifier. Many customers are pleased at how easy it is to clean, and that it’s filterless.

Humidifiers are a great way to maintain the air quality and comfort in your home, room, or office space. As you probably know, they require a lot of maintenance, which is both a time and money suck. We’ve created this guide to help narrow down the best filterless humidifiers so you can maintain comfort in your space while saving you from the hassle of filter replacement. Here are our top 5 recommendations:

Other Features to Look For

Having a filterless humidifier will increase the cost savings and decrease the time you spend maintaining your unit. You should also make sure that the humidifier is easy to clean, that it’s quiet, and that it suits your size requirements. For most humidifiers you’ll still have to clean them once a week, but as long as the components are easy to reach, it’ll make the job quicker and easier.

Pure Enrichment MistAire XL Ultrasonic Cool Mist Humidifier

Our top choice for filterless humidifiers is the Pure Enrichment humidifier. It has a 1-gallon water tank size and can last between 10-24 hours, depending on your operation settings. It’s ideal for about 500 square feet, so it’ll work great for large rooms and offices.

It has a 5-year warranty, and an automatic shut off feature as well. It comes with a cleaning brush and wide-open water tank, so it’s easy to clean. It’s highly rated for ease of assembly, easy cleaning and high durability.

Most customers have highly rated this product, but the few complaints include leakage and increased noise after some use.

Levoit Ultrasonic Cool Mist 4.5L Humidifier

Another great filter-free humidifier is the Levoit Ultrasonic Cool Mist Humidifier. It’s 4.5L (1.1 gallons) and meant for small to large rooms. It is very quiet at 28 decibels. You can also diffuse essential oils along with mist. It’s very easy to clean as you can stick your whole hand or cleaning brush into the water tank.

It has a 2-year warranty and auto shut off safety feature, so it’ll turn off after it runs out of water. It’s rated highly for ease of assembly, easy cleaning, and low noise level. It’s also lightweight and easy to use. It can last up to 40 hours, depending on the operation settings you choose.

The main drawback to this humidifier includes the possibility of leakage, as some customers saw some dripping.

Pure Enrichment MistAire Silver Ultrasonic Cool Mist Humidifier

Another favorite filter-free humidifier of ours is the Pure Enrichment Silver Ultrasonic Humidifier. It’s quite similar to our top pick, but this Silver model is sleep friendly with even quieter features and a night light. It has a 1.5-liter water tank can last up to 25 hours. Overall, it’s idea for spaces of about 250 square feet.

As with the XL model, this Pure Enrichment humidifier has a 5-year warranty and an automatic shut off feature. It’s easy to clean with the featured cleaning brush. Customers like it for its ease of use, ease of assembly, and low noise level.

The main concern with this humidifier is the ease of cleanliness. Some customers cite that it’s difficult to clean the sprout and mist tunnel.

Honeywell Cool Mist Humidifier

A great medium-sized filterless humidifier is the Honeywell HUL535B Cool Mist Humidifier. It can run up to 24 hours has a large tank opening so it’s easy to clean—you can fit your whole hand inside. As with the other humidifiers in this list, it has an auto shut off feature.

Customers like that it’s very quiet but a few drawbacks are the possibility of leaks, and the mineral residue. You will have to dust around this unit, which is a common drawback to filterless ultrasonic humidifiers.  

Vicks Filter-Free Cool Mist Humidifier

Last (but not least) on our list is the filter-free Vicks humidifier. It has a 1.2-gallon capacity, meaning you can get up to 30 hours of use for areas between 100-400 square feet. One key benefit to this model is that you can use Vicks VapoPads in the slot. These are nonmedicated menthol pads that help relieve symptoms of cough, cold, and flu. It has an auto shut off feature and a wide-open tank so you can clean it easily.

Customers like this Vicks humidifier for its ease of assembly, ease of use and low noise level. Some customers noticed that the noise level increased after use, and that it has a few hard to clean areas.

Our Favorite Filterless Humidifier

We intend for this list to help narrow down your choice when choosing a filterless humidifier. Hopefully you have a better idea after reading these reviews. If you haven’t decided yet, we recommend looking at our favorite humidifier: the Pure Enrichment MistAire XL Ultrasonic Cool Mist Humidifier. It has great feedback from customers, is easy to clean, and has a 5-year warranty. It’s one of the best on the market today.

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