Ultrasonic Cool Mist Humidifier 4L

Ultrasonic Cool Mist Humidifier 4L


630 reviews
Ships from United States of America
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Free Shipping

2-Year Replacement

Highly Rated

Transforming your indoor space into a harmonious ecosystem is a breeze with the Everlasting Comfort 4 Liter Ultrasonic Cool Mist Humidifier. The benefits of humidifiers are wide ranging. From helping soothe symptoms of the common cold and flu, to providing relief from asthma and other allergens; you can relax comfortably knowing the air you and family are breathing is safer from bacteria, mold spores, and airborne viruses. And helping to improve your respiratory health is a crucial factor in optimizing your indoor living spaces.

Thoughtfully designed and meticulously built, our ultrasonic humidifier is loaded with features. The filterless design, will save you money when compared to other units that require expensive replacement filters. It features an automatic shut-off function and large 4 liter (1 gallon) water tank that lasts up to 40 hours and creates a soft and soothing mist for rooms up to 300 square feet. Our humidifier for bedrooms also includes an aroma tray where you can add a variety of essential oils to help keep the air from becoming dry. It's the ultimate aromatherapy humidifier for stress relief and comfort. Designed to fit in any bedroom, nursery, living space, or office, our personal humidifier will help to create a comfortable and healthy environment.

Adding our air humidifier with essential oils will help ensure you experience a good night’s sleep so you wake well rested for the day's adventures. The whisper quiet motor let's you sleep soundly by fighting off dryness in the throat, nasal passages and skin. You can sleep easy knowing that our diffuser humidifier is ETL certified by Intertek's Electrical Testing Labs for safety and reliability. All our electronic components surpass set safety standards to ensure our room humidifier is reliable. And to add on another level of protection, we back our humidifiers with our 2-Year Replacement Policy.

What is the warranty on this product?

Our humidifier comes with a 2-year replacement policy. If anything goes wrong with your unit, we will replace it free of charge.

Can I use tap water or does it need to be distilled/demineralized?

Yes. Tap water is okay to use with our humidifier. We do recommend that you clean it regularly.

Warranty Information

Everlasting Comfort® products come with our 2-Year Replacement Policy from Upper Echelon Products.

For ANY quality-related issues, we will send you a replacement for free!

Please note that this warranty is not valid unless the item is purchased directly from Everlasting Comfort® and registered under our warranty.

Upon receipt of your purchase, you need to register your product on our website. To register your product, click here.

For any inquiries regarding our warranty or registration, please email support@upperechelonproducts.com with your name and order information (if applicable), and we would be happy to assist you further.

To redeem a replacement under warranty, please email us the following information:
-Order Confirmation/Order ID
-Product Name/Title (in cases of multiple orders)
-Brief description of the issue(s) along with picture(s) of the damage (if applicable)


The above guarantee is against defects in materials and workmanship. If anything goes wrong with your product, we will send you a replacement for free. The lifetime warranty does not apply to electronic products which come with a 2-year warranty.
Current products with 2-Year Warranty include:

  • Oil diffuser
  • Humidifier

Non-returnable items:

  • Gift cards

Return Policy

We offer a free 30-day Return Policy for undamaged items. You can return your product for EC-store credit, a different product (Exchange), or a refund to the original payment method.

Refunds or EC-store credit will be processed upon the delivery and processing of the item(s).

For exchanges, we will ship your new item once the original item is received based upon your original exchange request. Exchanges are for products of equal or lesser value.

Please note the following exceptions to our return and exchange policy:

  • Returned items must be returned in the original packaging
  • Returned items must have no visible signs of wear or use
  • Exchange is only 1 item per Order with a product of equal or lesser value. Only rare exceptions will be made to this policy.
  • Gift Exchanges are only applicable if provided the Order Number as proof of purchase and is applicable for an Exchange of product(s) of equal or lesser value OR applicable for EC-store credit.

Questions? Get in Touch.

To initiate a Return or Exchange, please complete the following steps:

-Contact us by email at support@upperechelonproducts.com with your Order Number and specify the item(s) you wish to Return OR Exchange.

-Print the prepaid USPS Return Label that you will receive from our Customer Support and mail back the item(s) using the prepaid Return Label.

-Refunds or EC-store credit will be processed upon receipt of the item(s). For exchanges, the new item(s) will be shipped upon arrival of the original item(s).


If wishing to exchange item(s) of greater value than the original item purchased, we will provide EC-store credit which may be applied to the purchase of your new item(s).

Free Shipping

Get Free Domestic Shipping on All Everlasting
Comfort® Products.

2-Year Replacement

Everlasting Comfort® Humidifier & Oil Diffuser Products
come with a 2-Year Replacement Policy.

Highly Rated

As an American brand, we are highly recommended
beyond our borders by health conscious individuals
just like you.


Customer Reviews
5.0 Based on 630 Reviews
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Amazon C.
Low Noise level , Easy to clean , Easy to use

Im super exited I received my first Everlasting Comfort Humidifier and I have to say this is my favorite one so far.I had 3 different ones in the past from different company’s and had bad experience with them.This Ultrasonic Humidifier I was able to assemble it within 2 minutes without any help. Instructions is included. The humidifier also brings a small tray in which you can add essential oil (optional)yay! I love essential oils specially in a stressful day.Super easy to clean no leaks at all.Has a press control button to set your desire most output level. Level noise really low and must is perfect no mess!

Larissa B.
This product is amazing

This product is amazing and great for my sons room. Provides him with a night light and is able to add essential oils that blows throw out the entire room????

Great Product

Great humidifier. Super easy to set up + use. Good size + personally like the shape. Delivery came early also! I’d definitely recommend to a friend.

Lauren A.
Diffusers for days!!

Love this ! It helped my son sleep better when he was under the weather and it was still diffusing when I woke up the next morning!! Most diffusers I have bought are out in a few hours so I was shocked when I saw it was still going!

Amandah P.
Great addition to my bedside table!

I had been looking for a humidifier for sometime for two reasons: 1) my voice (I work in fitness and yell all day), and 2) my plants! I came across this one and went for it, and am thrilled with it so far (I have had it for about a month). It is super easy to clean (no filters!), the essential oil tray is genius (my favorites are Ylang Ylang and Geranium), it is pretty quiet (there is a little hum but it is actually rather soothing, even my boyfriend said so who was worried about it keeping us up when I purchased it), and I loooovvveee that you can control the amount & direction of the mist! I have been rotating the plants on my bedside table, and need to ensure that the mist is directly hitting the plants that *want* a lot, but while allowing the others to still get some of the benefits as well. Plus, I have had no issues with my voice since I have been using it (I tend to lose my voice a lot). All in all, I am very satisfied with my purchase!

Ryan C.
Super Quiet and Runs Forever

Omg this is a lifesaver for my home! Spending 90% of my time indoors it’s good to refresh your air! Super quiet and literally lasted days without having to refill the tank. I have to buy one for every room!

Great product

I hate having chapped lips or dry skin. So I looked into getting a humidifier.They have added a tray for essential oils and a blue LED night light. I always have smell goods plugged in to the wall or the tv on for a light now it all comes in one device!Super easy instructions and set up. Quiet and cute design that doesn’t clash with my house. It provides a cool mist that you can adjust and is filter less which is awesome because I am forgetful when it comes to cleaning filters properly.

Theresa C.
Very quiet beauty with reservoir for multiple days

I love this product. So quiet you can barely tell it's on. 4L reservoir is good for multiple days so you can leave it on and forget about it for few days. I love that it comes with essential oil tray. My room smells awesome all day long. I highly recommend this.

Leslie S.
No more bloody noses!

I’d been in the market for a humidifier for a while now. Living in western, NY the winters are HARSH on my skin and I often get nose bleeds. After using this for a week, I can already see a difference! It’s easy to use, set up, and refill. I haven’t cleaned it yet, but I’m sure it’ll be fine. It’s also a great size and makes relatively no sound.

Macy P.
Doesn’t have a 5 star for nothing!

! I love that the tank is huge so I’m not constantly refilling it! I also love that it’s quiet, had a clean and simple look and has a essential oil tray to take the air to the next level! Bonus like for me was they are based out of Austin, TX! Highly recommend!

Ultrasonic Cool Mist Humidifier 4L


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