HoMedics Ultrasonic Humidifiers: Cool Mist or Warm and Cool?
As Amazon Associates, we earn from qualifying purchases. This means we may receive a small commission at no extra cost to you if you click through and make a purchase.
HoMedics is a home wellness brand best known for massagers, sound machines and humidifiers, and its humidifier range leans heavily on ultrasonic technology. “Ultrasonic” means a small plate vibrates very fast underneath the water and breaks it into a fine, visible mist without boiling it. That makes these humidifiers quiet enough for a nursery or bedroom, which is why they come up so often as baby-shower and winter gifts.
The six models here range from a pocket-size portable unit to a 2-gallon tower, and the main differences are whether they offer cool mist only or warm and cool mist, how much water they hold, and how smart the controls are.
HoMedics Ultrasonic Humidifiers Compared

Homedics
Homedics Ultrasonic Humidifier Large Deluxe Cool and Warm Mist Humidifier
Price and specifications are read from the Amazon product page and can change.
Homedics Ultrasonic Humidifier Large Deluxe Cool
Best for: Nurseries needing warm or cool mist
Pros
- Warm or cool mist
- Up to 85 hours per fill
- Covers up to 521 sq. ft
- Programmable humidistat
Cons
- 1-year warranty only
- Weight spec looks wrong

Best for: Medium bedrooms and home offices
Pros
- 360-degree mist nozzle
- Up to 45 hours per fill
- Auto shutoff when empty
- 2-year warranty
Cons
- Cool mist only
- No humidistat listed
| Model | Mist type | Tank and runtime | Room size | Warranty |
|---|---|---|---|---|
| Homedics Cool Mist Ultrasonic Humidifier | Cool | 1.47 gal, up to 70 hours | Up to 426 sq. ft. | 2 years |
| Homedics Ultrasonic Humidifier (0.97-gallon) | Cool | 0.97 gal, up to 45 hours | Up to 400 sq. ft. | 2 years |
| Homedics Deluxe Ultrasonic Humidifier for Large Rooms | Warm or cool | 1.5 gal, up to 70 hours | Up to 502 sq. ft. | 2 years limited |
| Homedics Ultrasonic Humidifier Large Deluxe Cool and Warm | Warm or cool | 1.38 gal, up to 85 hours | Up to 521 sq. ft. | 1 year |
| Homedics Portable Humidifier | Cool | 8.5 oz, up to 10 hours plugged in | Not listed | 1 year limited |
| Homedics Warm and Cool Mist Ultrasonic (2-gallon) | Warm or cool | 2 gal, up to 90 hours | Up to 506 sq. ft. | Not listed |
Homedics Cool Mist Ultrasonic Humidifier for Large Bedrooms

Homedics
Homedics Cool Mist Ultrasonic Humidifier for Bedroom, Large Room
Price and specifications are read from the Amazon product page and can change.
Homedics Cool Mist Ultrasonic Humidifier
Best for: Large bedrooms needing long cool-mist runtime
Pros
- 47-gallon top-fill tank
- Up to 70 hours per fill
- Programmable humidistat
- 2-year warranty
Cons
- Cool mist only
- Tall at almost 21 inches
The Homedics Cool Mist Ultrasonic Humidifier is a tall, top-fill tower for bedrooms and family rooms up to 426 square feet. “Top-fill” means you pour water in from the top instead of flipping a tank upside down over the sink, which is much easier for most people. The 1.47-gallon tank provides up to 70 hours of cool mist per fill, according to the feature list, although the spec table oddly says 70 minutes; the hours figure matches the rest of the listing.
You get 3 cool mist settings, an auto-off timer with 3 timed options and a programmable digital humidistat. A humidistat is like a thermostat for moisture: you choose a humidity level and the machine works to hold it. There is a built-in night-light, 3 essential oil pads for adding scent, 1 demineralization cartridge to reduce white dust from hard water, and a 2-year warranty.
This suits someone who wants long runtime and simple cool mist for a bigger bedroom. If you want warm mist too, look at the Deluxe models or the 2-gallon model below.
Homedics Ultrasonic Humidifier for Medium Bedrooms and Offices
The Homedics Ultrasonic Humidifier with the 0.97-gallon tank is a lower, wider unit for medium-to-large bedrooms or offices up to 400 square feet. Its 360-degree nozzle spreads cool mist in every direction, and the top-fill tank runs up to 45 hours per fill. Clean Tank Technology is listed to help protect and clean the tank.
Controls are simpler than on the large tower: adjustable cool mist settings, a night-light, auto shutoff when the tank is empty, 3 essential oil pads and a demineralization cartridge. The listing does not mention a humidistat or timer. It comes with a 2-year warranty and weighs 6.7 pounds.
This is a sensible first humidifier for a home office or guest room. Buyers who want to set an exact humidity level should choose one of the models with a programmable humidistat.
Homedics Deluxe Ultrasonic Humidifier for Large Rooms with Smart Controls

Homedics
Homedics Deluxe Ultrasonic Humidifier for Large Rooms, Warm or Cool Mist
Price and specifications are read from the Amazon product page and can change.
Homedics Deluxe Ultrasonic Humidifier for Large
Best for: Families wanting remote control and UV-C
Pros
- Warm or cool mist
- 7 mist settings
- UV-C and humidity sensor
- Remote control included
Cons
- Heavier at about 3 kg
The Homedics Deluxe Ultrasonic Humidifier for Large Rooms is the most feature-rich model in this group. It offers warm or cool mist, two 360-degree rotating nozzles and 7 mist settings. Warm mist is gently heated before it leaves the machine, which many people find more comfortable on cold nights; cool mist is often preferred in warm rooms and around children.
The 1.5-gallon top-fill tank runs up to 70 hours and covers rooms up to 502 square feet. UV-C technology works inside the unit to reduce bacteria, mold and fungus in the mist, and a smart-adjust humidity sensor, a programmable humidistat and a color indicator help you keep humidity where you want it. You control it with the included remote (with 2 AAA batteries) or the LED touch panel, and it carries a 2-year limited warranty.
Choose this for a busy family room or a parent who wants to adjust settings from bed. Shoppers who want the longest runtime should compare it with the 2-gallon model.
Homedics Ultrasonic Humidifier Large Deluxe Cool and Warm for Nurseries
The Homedics Ultrasonic Humidifier Large Deluxe Cool and Warm Mist model offers warm or cool mist for rooms up to 521 square feet, the largest coverage listed here. Its 1.38-gallon tank (listed as 5200 ml) runs up to 85 hours per fill, and Clean Tank Technology helps protect it from mold and mildew.
You choose from 5 warm or cool settings, and there is an auto-off timer and a programmable humidistat. A night-light, 3 essential oil pads and a demineralization cartridge are included. The listing names nursery as a room type. Note that it comes with a 1-year warranty rather than 2 years, and the item weight is listed as 1.38 g, which is clearly an error in the listing.
This fits a nursery or large bedroom where you want long runtime and the choice of mist type. If you want a remote control, the Deluxe for Large Rooms above is the one that includes it.
Homedics Portable Humidifier for Travel and Desks
Best for: Travelers, desks and car cup holders
Pros
- Fits a car cup holder
- Rechargeable battery with USB
- Color-changing accent light
Cons
- 5-oz tank, 3.5 hours on battery
- Personal space only
The Homedics Portable Humidifier is small enough to sit in a car cup holder. Its 8.5-ounce tank gives up to 10 hours of cool mist when plugged in and up to 3.5 hours on its rechargeable battery, with a USB charging cord included. The description adds an auto-shutoff after 12 hours.
It has 2 cool mist settings, an auto-off timer and a color-changing accent light you can turn off. Unlike the larger models, it uses wicks, and 3 are included. It carries a 1-year limited warranty. The listing does not give a room size, and a tank this small is meant for your personal space, like a desk or nightstand, rather than a whole room.
This is a fun stocking stuffer for a student, traveler or office worker. For humidifying an actual bedroom, any of the other five is a better choice.
Homedics Warm and Cool Mist Ultrasonic 2-Gallon for Fewest Refills
Best for: Big rooms with fewer refills
Pros
- 2-gallon top-fill tank
- Up to 90 hours runtime
- Warm or cool mist
- 3 demineralization cartridges
Cons
- Tall at almost 21 inches
- Warranty not listed
The Homedics Warm and Cool Mist Ultrasonic Humidifier (model UHE-WMTF93) has the biggest tank here at 2 gallons and runs up to 90 hours, depending on setting and room conditions. It covers large bedrooms, family rooms and living spaces up to 506 square feet.
Features include warm or cool mist, a 360-degree rotating nozzle, 5 mist settings, a programmable humidistat, a digital display and an auto-off timer up to 12 hours. It also has a night-light with on/off control, a clean reminder, auto shutoff when empty and 3 demineralization cartridges. The listing does not specify the warranty length or whether essential oil pads are included.
Pick this if refilling is the chore you want to avoid. If a remote or UV-C matters more than tank size, the Deluxe for Large Rooms is the better match.
How to Choose the Right HoMedics Ultrasonic Humidifier
Decide on mist type first. Cool mist only models are the Cool Mist tower, the 0.97-gallon unit and the Portable. The Deluxe for Large Rooms, the Large Deluxe Cool and Warm and the 2-gallon model all offer warm or cool mist. If you are also weighing germ-reducing features, our guide to a germ-free humidifier explains that approach.
Next, match tank size to the room. For a small office or desk, the Portable is enough. For a medium bedroom, the 0.97-gallon unit works. For large rooms, the 1.38-gallon to 2-gallon models give the longest runtime.
Then think about controls. A programmable humidistat appears on the Cool Mist tower, both Deluxe models and the 2-gallon unit. Only the Deluxe for Large Rooms includes a remote and UV-C. If you want app control instead, read our look at a smart humidifier.
Finally, remember maintenance. Every ultrasonic humidifier needs regular cleaning, and hard water can leave white dust, which is why most models include a demineralization cartridge. Replacement parts are worth checking before you buy, as our guide to humidifier filters explains.
FAQ
What is the difference between warm and cool mist?
Cool mist is released at room temperature, while warm mist is heated a little before it leaves the unit. Warm mist can feel cozier in winter; cool mist does not add warmth to the room.
Which HoMedics humidifier is best for a nursery?
The Large Deluxe Cool and Warm lists nursery as a room type and has a night-light and humidistat. Place any humidifier out of a child’s reach.
What is a demineralization cartridge?
It is a small insert that helps capture minerals from tap water so fewer of them end up as white dust on furniture.
Can I add essential oils?
The Cool Mist tower, the 0.97-gallon unit, both Deluxe models include essential oil tray pads. Put oil only on the pad, never in the water tank.
Are HoMedics humidifiers quiet?
Ultrasonic models are generally quiet, and several listings describe whisper-quiet operation suited to nighttime use.
Which model runs the longest?
The 2-gallon Warm and Cool Mist model lists up to 90 hours, followed by the Large Deluxe Cool and Warm at up to 85 hours.


