Vornado UH100 Ultrasonic Humidifier
- 2-gallon output every 24 hours
- Up to 600 sq ft
- Humidistat 40-60% or continuous mode
- 3 fan settings: High, Low, Auto
- 1-gallon SimpleTank, wide opening
- 26 watts, 120 volts, U.S. use only
- 7.3 x 12.6 x 14.5 inches, 5.7 pounds
- 5 year replacement guarantee
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
An ultrasonic cool mist humidifier with a fan that spreads moisture across a bedroom or living room and an easy fill tank. It runs on U.S. voltage only.
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ASIN: B07X5YVSRFModel: UH100Category: Humidifiers
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Overview
Not a plain mist sprayer, this Vornado humidifier uses a fan to carry ultrasonic mist across the room so moisture does not settle around the unit. A built in humidistat holds a set level, and the wide tank opening makes filling and cleaning easy.
Fan assisted spreading avoids damp patches near the unit and covers a larger room. Ultrasonic units can leave mineral dust with hard tap water, which the listing does not address.
Who it's for
Bedrooms, offices and living rooms with dry winter air suit its humidistat and fan. Homes with very hard water should plan for distilled water or extra cleaning.
Pros and cons
- Fan spreads mist evenly
- Holds a set humidity level
- Wide opening tank cleans easily
- Three fan settings
- U.S. voltage only
- Small tank for continuous high output
- Hard water dust not addressed
Performance notes
The ultrasonic plate creates mist and the fan pushes it into the room, which helps moisture mix with room air instead of pooling. The humidistat cycles output to hold the chosen level, so it runs less once the room reaches target.
Specifications
| Brand | Vornado |
|---|---|
| Model | UH100 |
| Dimensions & fit | |
| Item Dimensions D X W X H | 7.3 x 12.6 x 14.5 inches |
| Item weight | 5.7 pounds |
| Capacity & performance | |
| Capacity | 1 gallon |
| Output | 2 gallons per 24 hours |
| Humidity range | 40-60% or continuous |
| Wattage | 26 watts |
| Number of speeds | 3 |
| Power & efficiency | |
| Voltage | 120 volts |
| Included components | |
| Included Components | Humidifier, owner's guide |
| Warranty & support | |
| Warranty Description | 5 year manufacturer |
| Other details | |
| Floor Area | 600 square feet |
| Operation Mode | Ultrasonic, fan assisted |
| Control Type | Touch |
Frequently asked questions
What comes in the box with the Vornado UH100?
The humidifier and an owner's guide.
Can I use tap water in the Vornado UH100?
Yes. The listing says it works with distilled or tap water.
Can I use the Vornado UH100 outside the U.S.?
No. It is built for U.S. voltage, and use with voltage converters or outside the U.S. voids the warranty.