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Warm and Cool Mist Dual-Tank Ultrasonic Humidifier

Model: UHE-WM250

Availability: In stock

Ships in 1-2 business days ?


Breathe easy with warm or cool micro-fine mist, perfect for any room. The HoMedics® Warm and Cool Mist Dual-Tank Ultrasonic Humidifier uses ultrasonic technology for whisper-quiet, visible, micro-fine mist with warm or cool options. The 2-gallon dual tanks are easy to remove and fill. Runs up to 120 hours per filling, with auto shut-off protection when the tank is empty.

  • Easy to remove and fill 2-gallon dual tank capacity
  • Choose between warm or cool mist
  • Runs up to 120 hours per filling
  • Built-in on/off night light
  • Ultrasonic technology for whisper-quiet, visible, micro-fine mist
  • Clean Tank Technology helps protect the tank from mold and mildew
  • Auto shut-off protection when tanks are empty
  • 2 Demineralization cartridges included to help reduce white dust caused by hard water conditions
Customer Reviews
Warm and Cool Mist Dual-Tank Ultrasonic Humidifier is rated 2.3 out of 5 by 48.
Rated 2 out of 5 by from Descent humidifier, but poorly designed Initially the humidifier worked great...that is until I discovered the mold build up. Getting it clean is a challenging project as there are many difficult to reach nooks and crannys. There is no way to access the “up tube”, for lack of a better term, to scrub it so you have no idea how much build up has occurred. After trying the vinegar cleaning solution, which only cleans the base area, I had to completely disassemble the unit to gain access to the parts that needed cleaning. The whole issue could be eliminated with one design change. Make the small panel, see attached picture, removable from the back to allow access to the entire mist path.
Date published: 2018-02-28
Rated 2 out of 5 by from Very poor design The product looks pretty, but the design is so user unfriendly that it's difficult to fill the tank. I am always afraid that it would slip and all the water will spill. Sometimes it will stop seemingly for no reason. I do discover that cleaning it make it works again. I am not able to clean the spout. I read that it can grow mold. Yuck! If that happens I will have to throw it out. I got it from Costco at a great price. So at least I didn't pay $129. What I do like is the demineralization cartridges that came with the product. I think that little cartridges really work. I am getting those for my other humidifiers.
Date published: 2018-06-03
Rated 2 out of 5 by from Very glitchy There is some kind of balancer in this machine that doesn't allow it to work unless its at a certain level, however mine only works when I put a book under it in the front, and then its leaning back and not level. Have had problems with this brand before, and this will be the second one I've returned to Costco for not working properly. Continuous run does not work, keeps going off through the night and then making a clicking sound and I have to get up and just turn it off. Not impressed.
Date published: 2018-01-22
Rated 4 out of 5 by from Better Than Most I have tried a lot of portable humidifiers that empty before the end of the night and are horrible to clean. This humidifier not only lasts all night and into the next day, I've is super easy to clean. I've read some poor reviews and I don't get it. Frankly I think some people don't know how to use it. You have to set in on CO to keep it from shutting off (versus the number of hours...keep pushing the button until it says CO (continuous) and if it's not on a totally level surface, it may stop steaming and you just simply move it a little bit. All in all, I love this machine.
Date published: 2018-03-16
Rated 5 out of 5 by from Homedics UHE-WM 250 Humidifier We highly recommend this product. Many products don't quite meet your expectations or live up to the performance benefits listed in their promotional materials. This one does. With the warm mist feature turned on and the unit running at its highest setting, the warm mist it produces is completely absorbed into the surrounding air without any moisture settling on furniture or flooring which remain completely dry. The twin tanks, each, actually take a full gallon of distilled water and can be refilled easily while the unit continues to operate. The ability to set the desired humidity level works perfectly and keeps our room air at a comfortable level. The unit is quiet and compact. The design is attractive and unobtrusive in any setting. Well done Homedics! 12/1/17
Date published: 2017-12-02
Rated 3 out of 5 by from Mixed Review I was given this as a gift, works great for it's purpose and introducing moisture into the room. The features are awesome, used the aroma and did not think I would like it, however I was wrong and great touch. Issues are the tanks, awkward shape when filling them up and makes it very difficult to handle and hold. Already broke one as it slipped flipping it back over. Makes no sense on this design!
Date published: 2018-01-05
Rated 2 out of 5 by from HoMedics Total Comfort Ultrasonic Humidifier Warm and cool mist model UHE-WM 350 This product produces a smell no matter how many times I clean it with vinegar and water. There is also a pinkish slimy deposit where transducer is located. It is extremely difficult to clean due ti placement and screw holders. I have to take it apart every day to clean it and keep the odor to a minimum. A normal Q-tip does not quite reach the center which gets a gray deposit. I use distilled water. It does keep the humidity level and the night light is a pleasant touch.
Date published: 2017-12-26
Rated 1 out of 5 by from Problems after less than a month Design of product is great. Unfortunately after less than a month, unit shuts off. Resetting hygrometer setting to various levels including CO were unsuccessful. Turned off and on a couple of times and unit restarted. After a short bit, problem repeated. Tried to call Howmedics and was put on terminal hold. Would appear only viable option is to return unit for refund.
Date published: 2017-12-29
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Q & A

How much watts (electricity) does this humidifier consumes?

Asked by: Makmah
minimal------probably 5 watts
Answered by: Tony
Date published: 2018-04-14

Where can you buy replacement tanks for this machine? They are unavailable for order on the Homedics website.

Asked by: lindah
We are expecting tanks to arrive mid May for this unit, as soon as they arrive they will be available on our website.
Answered by: Daniel HoMedics Support
Date published: 2018-03-21

Can you please email me a manual?

Asked by: Laeltaylor1
You can download the manual at the link below.
Answered by: Daniel HoMedics Support
Date published: 2018-03-21

I dropped the water tank can I purchase a replacement

Asked by: hbdrum
We are expecting tanks for this unit to arrive in mid May, they will be added as soon as they arrive.
Answered by: Daniel HoMedics Support
Date published: 2018-03-21

How to clean humidifier. ? A simple video on youtube will help. I can see dirt from where mist comes out . How to clean places which are not reachable ?

Asked by: Anil
We suggest that you clean the Humidifier with a 50/50 mix of vinegar and water. You can run this mix through the machine, use a pipe cleaner to clean areas that you are not able to reach with your hands.
Answered by: Daniel HoMedics Support
Date published: 2018-04-03

I need to buy some more demineralization cartridges. Where can I get them?

Asked by: Marla
You can find them on our website at the link below.
Answered by: Daniel HoMedics Support
Date published: 2018-03-13

The water keeps stopping. We need to lift one side up to get the water to fill the basin again. What can we do?

Asked by: ssharon
Please remove your tank from the unit, flip the tank over so the cap on the tank is facing the ceiling. Press on the center of the cap where you see the spring about 15-20 times, this will loosen the spring and should allow water to flow.
Answered by: Daniel HoMedics Support
Date published: 2018-02-28

Do you sell replacement tanks? I have 1 tank that brokesmith

Asked by: Wsmith
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