DREO HM311 Humidifier 4L
- 4 liter top fill tank, 36 hour runtime
- 300 square feet coverage
- 28 dB ultra quiet operation
- Touch control, adjustable humidity
- 26 watt-hours, 120 volts
- Night light and aroma diffuser
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A touch-operated quiet humidifier with a night light and a top-fill tank for bedrooms and nurseries. It lacks app control, and the pack count is listed inconsistently.
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ASIN: B0CCY6VG8ZModel: HM311Category: Humidifiers
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Overview
DREO makes this white ultrasonic humidifier with an easy top-fill tank, adjustable humidity control and an aroma pad. A cleaning brush and cleaning guide ship in the box.
Quiet running, a night light and simple touch control make it a bedside unit that is easy to refill and clean. The limit is coverage for one room only and no app or voice control in the specs.
Who it's for
Light sleepers and parents of small children will notice the low noise rating and the night light. Smart-home users, or anyone with a large open living area, should compare models that list app control and a bigger coverage area.
Pros and cons
- Very quiet operation
- Top fill tank
- Cleaning brush and guide included
- Aroma diffuser option
- Touch control only
- Pack count listed as one and two
- Coverage limited to one room
Performance notes
An ultrasonic module makes the mist, and adjustable humidity control lets the unit hold a level. Top filling avoids lifting the tank, and the pre filter handles incoming water. Regular cleaning with the supplied brush is the stated upkeep.
Where it stands among humidifiers
- 36 hours runtime: longer than 80% of the humidifiers we list.
From the specs of the 46 humidifiers we list; not a test result.
Specifications
| Brand | Dreo |
|---|---|
| Model | HM311 |
| Dimensions & fit | |
| Item Dimensions D X W X H | 5.51"D x 11.02"W x 10.16"H |
| Item weight | 3.1 pounds |
| Capacity & performance | |
| Capacity | 4 litershigher than 50% of 27 humidifiers |
| Wattage | 26 watt-hours |
| Noise level | 28 dB |
| Power & efficiency | |
| Voltage | 120 volts |
| Power Source | Corded Electric |
| Construction & materials | |
| Color | White |
| Material | Plastic |
| Included components | |
| Included Components | Aroma Pad, Cleaning Brush, Cleaning Guide, Humidifier, User Manual |
| Unit Count | 1 Count |
| Other details | |
| Floor Area | 300 square feet |
| Runtime | 36 hourshigher than 80% of 21 humidifiers |
| Operation Mode | Ultrasonic |
| Filter Type | Pre Filter |
| Control | Touch |
| Special Features | Adjustable Humidity Control, Aroma Diffuser, Easy Top-Fill, Night Light |
| Item Shape | Oval |
| Room Type | Bedroom, Kids Room, Living Room, Nursery, Office |
Closest rivals on specs
Crane Droplet Ultrasonic Cool Mist Humidifier 0.5 Gal- Capacity 1.1 vs 0.5 gallons (+120%)
GoveeLife H7140 Smart Cool Mist Humidifier 3L- Capacity 1.1 vs 0.8 gallons (+38%)
- Runtime 36 vs 25 hours (+44%)
- Wattage 26 vs 19 watts (+37%)
Levoit Top Fill Humidifier 2.5L- Capacity 1.1 vs 0.7 gallons (+57%)
- Floor Area 300 vs 219 sq ft (+37%)
- Item Weight 3.1 vs 2.2 pounds (+41%)
Frequently asked questions
How do I clean the DREO HM311 humidifier?
A cleaning brush and a cleaning guide are included, and the listing calls it easy to refill and clean.
Does the DREO HM311 have app control?
No. The control method is touch.
What comes with the DREO HM311 humidifier?
An aroma pad, cleaning brush, cleaning guide, the humidifier and a user manual.
How quiet is the DREO HM311 humidifier?
The listing states 28 dB.