Cool Mist Ultrasonic Humidifier

Model: UHE-CM45

Availability: In stock

Ships in 1-2 business days ?


The HoMedics® Cool Mist Ultrasonic Humidifier uses ultrasonic technology for a whisper quiet, visible, micro-fine cool mist. The UHE-CM45 runs up to 36 hours per filling with convenient LED "refill indicator" light, with auto shut-off protection when the tank is empty.

Ultrasonic Technology

Ultrasonic technology delivers a whisper quiet, visible, micro-fine mist.

Up to 36 hours of Runtime

Runs up to 36 hours per filling with convenient LED "refill indicator" light.

Ultrasonic Technology

Ultrasonic technology delivers a whisper quiet, visible, micro-fine mist.

Up to 36 hours of Runtime

Runs up to 36 hours per filling with convenient LED "refill indicator" light.

  • Easy to remove and fill 1 gallon tank
  • Cool mist
  • Runs up to 36 hours per filling with convenient LED "refill indicator" light
  • Built-in ON/OFF night light
  • Ultrasonic technology for whisper quiet, visible, micro-fine mist
  • Clean Mist anti-microbial technology helps prevent the growth of molds and mildews on the surface of the tank
  • Auto shut-off protection when the tank is empty
  • Demineralization cartridge included
Customer Reviews

January 23, 2015

unit works well, but does have a noise issue with the fan. the only time it's super quiet is when it's off.


January 4, 2015

Was out shopping for a new humidifier and I saw this homedics model and I just could not resist it. It was very quiet it had a nightlight and best of all it automatically would shut off if the water level was too low too bad I couldn't use it because of the awkward shaped tank. I actually broke mine but thanks to their return policy they made everything easy so I would recommend it as long as you can be careful with it.


December 24, 2014

Works great - but have issues with trying fill tank. I actually dropped it and cracked it after 1 week of use.


December 23, 2014

love the r2d2 look cute design or I can say the best design from their brand. The noise still a bit not that quiet. Love th holder of the tank. Again the design is cool


December 14, 2014

The best humidifier I have used. Ultra quiet and no dampness around unit. Very pleased so far. I hope its great performance last. No filters to change or buy is another plus.

-Roanoke Brian

November 4, 2014

This unit works great, but the tank is poorly designed. When it is upside down for filling, it is not very easy to hold. I ended up dropping mine and cracking the tank.


November 4, 2014

This is the very best humidifier I have ever own. It's quite, love the built in nite light. I haven't had any blocked sinuses or headaches. It's very nice looking & not bulky to handle.
I just might get another for the living room as well!
Thank you Ho Medics.


October 28, 2014

Love how this thing is designed!

I can keep it running while removing the tank due to the way the transducer is isolated from the reservoir basin.

Although the only thing I could change possibly is the fan unit. It tends to be a bit noisy. This might either be due to the way its mounted (no rubber mounts) or the fan design (squirrel cage, rather than bladed).

But aside from the fan noise, I love this thing :)


May 9, 2014

This is by far the best humidifier I have ever used. Its very quiet and i can actually
see this mist coming out. It never makes anything around it wet though. The company has been wonderful to work with. I dropped and broke a part of my humidifier and they replace it for me. It has a nice appearance and i love that you can turn off the night light which was not possible on my last unit. I would recommend this humidifier to anyone!

-Tucson Kerry

February 5, 2014

I was suffering from headaches in the middle of the night. As I would get up and walk down the hall to get an aspirin, I noticed a crackling and relief of pressure in my head. This indicated to me that my sinuses were clogged. The static electricity in the house led me to believe that the extremely dry air in the house was causing me sinus distress. I purchases the HoMedics humidifier because I had owned a few other HoMedics products and had experienced satisfactory use from them. It was easy to set up. The instructions were easy to read and understand. I like the fact that it has a one gallon tank which is more than enough for a night's sleep, even at maximum setting. This is an outstanding item that has performed very well for me. I have not had night time headaches since beginning to use the humidifier. If you are having sinus trouble at night, give this item a try. I highly recommend it.

-Myrtle Beach Mike

January 23, 2014

This is my first humidifier and I am very pleased with how silent it is and how easy it is to refill. I like how you can adjust how much mist you want and to be able to turn off the night light if you wish. I am pleased with the looks and would recommend this particular one to anyone looking for a humidifier.


December 18, 2013

I bought this humidifier since my old humidifier sounded like a freight train and I was determined to have peace and quiet and humidity in my house. I am pleased to tell anyone and everyone this unit is ultimately quiet!!! I couldn't be happier!!! It blows the cool mist out but doesn't make anything wet like some humidifiers I've had. Even on the highest setting, the path under the mist doesn't feel damp. It has a pleasant appearance and has a little night light which I would think would be nice in a child's room. The only criteria left to judge is the longevity.... Homedics...don't let me down!!!


Review the Cool Mist Ultrasonic Humidifier

    1 star
    2 stars
    3 stars
    4 stars
    5 stars

* Required Fields

Instructions & Warranty Info
Return Policy

HoMedics Return Policy

Returning Web Orders

Returns of merchandise purchased from this website may be made within 30 days of receipt for a full refund of cost of the merchandise. The total of your return will be credited to the charge card that you used at the time of your purchase (minus shipping and handling). If the product you received was damaged, defective, or if the wrong item was shipped to you, you must first contact HoMedics Consumer Relations at: 800.466.3342 prior to returning your product.

To return an item you ordered from, fill out the Returns Form on the packing slip that came with your order and send it back with the merchandise to ensure proper credit and faster processing. HoMedics cannot be responsible for lost returns. We recommend using an insured and prepaid method for your return, such as UPS ground or insured USPS for proof of delivery.

To avoid any additional fees, please include all original packing materials, manuals and accessories with the product. All merchandise must be returned in its original packaging and in saleable condition. Wearable items must be unworn. We recommend you return items via UPS ground or insured USPS for proof of delivery.

A pre-printed return label is included on your original packing slip for your convenience.

No CODs will be accepted.

Typical turnaround time for returns or replacements is about two to four weeks, but may be a bit longer during high volume periods.

For more information, please visit our returns page.