Model # HM630U

Internet # 203681011

1-Gal. Cool Mist Tower

This item has been discontinued.
The Home Depot no longer carries this specific product.



Model # HM630U

Internet # 203681011

With it's state of the art functionality combined with it's great design that complements any home, this cool mist tower is ideal for medium rooms. It provides a refreshingly cool, invisible mist, as well as a digital humidistat which offers precise humidity control for your optimal comfort. This model also contains an Antimicrobial Product Protection and Arm and Hammer treatment to key plastic parts.

  • Designed for medium rooms
  • Runs up to 36 hours per tank filling
  • Accuset digital humidistat
  • Filtercheck monitor
  • Dishwasher safe base
  • 16 Hour timer


Product Depth (in.) 
Product Height (in.) 
Product Width (in.) 
Air Treatment Product Type 
Tower Humidifier 
Color Family 
Control Type 
Humidifier Features 
Automatic Moisture Control,Adjustable Humidistat 
Humidifier Tank Capacity (Gallons) 
Included Items 
No additional items included 
Minimum run time (hours/tank) 
Moisture dispersion type 
Cool mist 
Number of Fan Speeds 
Product Weight (lb.) 
9.05 lb 
Room Size (sq. ft.) 
Medium (400-1000 sq. ft.) 
Voltage (volts) 
Water Filter Replacement Model# 
Warranty / Certifications
Certifications and Listings 
No Certifications or Listings 
ENERGY STAR Certified 
Manufacturer Warranty 
1 Year 


Brand: Holmes
Humidifier Tank Capacity (Gallons): 1 - 2
Room Size (sq. ft.): Medium (400-1000 sq. ft.)
Included Items: No additional items included
Review Rating: 3 & Up
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Rated 3.8 out of 5 by 62 reviewers.
Rated 4.0 out of 5.0 by Great Humidifier This is my second one. This model is sleet, quiet, and reliable. I'm not giving the model a 5 star due to the difficulty in filling the tank. It can easily slip out of your hands as you attempt to screw the cap on once it's filled with water and awkward to handle. That's why this is my second one of this model. I like it, but you can't buy just the tank as a replacement part. You'll have to buy the whole until all over again. Holmes - you're doing your customers an injustice by not carrying the replacement tank for purchase. Customer - if you purchase this model, be very careful when you refill the tank! April 14, 2016
Rated 4.0 out of 5.0 by Very Easy to Use The Holmes Cool Mist Humidifier Tower with Digital Control Panel is a very economic way to humidify your house. The digital readout of the current humidity level is very convenient and helpful. Once the humidifier is set to the desired humidity level, the humidifier operates automatically. The only thing the owner of the humidifier needs to do is fill the humidifier with water when it gets low. May 9, 2016
Rated 3.0 out of 5.0 by ???? 2nd one for us, not as quiet as it should be considereding it's new?? First few weeks couldn't hardly hear it.....??? May 29, 2016
Rated 3.0 out of 5.0 by Disappointed I bought this as a replacement for another humidifier of the same model that I've had for a couple of years. The original humidifier fan had gotten so noisy that I had to turn it off at night. Unfortunately, the new humidifier is not much quieter and louder than the original one was when I purchased it years ago. In addition, the new humidifier filter change meter only registered 3/4's when the new filters were installed and it's still at 3/4's after about a month of use. The filters are starting to turn brownish so it seems like the filter meter isn't working either. In short, it looks like I either got a defective humidifier or the quality of the product has gone down. March 21, 2016
Rated 1.0 out of 5.0 by QA department did not test this unit The water tank and the large screw cap are not correctly threaded - the cap always sits on at an angle and so the tank does not mate correctly with the tank. We'll put up with it, but it would appear that Holmes Products are no longer worth the money. When this dies - and I'm sure it will, I'll be going to another brand with better QA. The design department should be made to test fill these units a thousand times - they might then come up with a tank that supports itself in the sink when you fill it, and a handle to help lift it out - just like the older two tank models had. February 28, 2016
Rated 5.0 out of 5.0 by Great product and price Very pleased with the price and fast shipment. This was a replacement for one that I had for many years. Motor finally went out., but got my $ worth. March 28, 2016
Rated 4.0 out of 5.0 by Space Saver Easy to clean and to keep serviced. Quiet fan and affordable filters. April 15, 2016
Rated 5.0 out of 5.0 by Holmes Cool Mist Humidifier Tower I purchased this a month ago and am so glad I did! It works fantastic! It is so quiet but efficient that you almost forget it is there. March 28, 2016
  • 2016-06-25 T20:44:21.457-05:00
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