Dreo HM311 4L Cool Mist Humidifier with 32H Runtime & Night Light
Ever tried to sleep with a jet engine disguised as a humidifier? Yeah, not fun. That's why ours whispers at a barely-there 28 dB—thanks to some fancy ultrasonic tech that keeps things library-quiet. (Sweet dreams, seriously.)
And let's talk mist. This thing doesn't just puff out a sad little cloud. With its dual-intake and a 4-inch outlet, it shoots mist up to 40 inches tall. Your room will go from desert to rainforest in no time, minus the actual rain.
Wet floors? No thanks. The high-frequency atomization breaks water into 5µm particles so fine, they float around like they own the place, humidifying evenly without the puddles.
Filling it up is a breeze—literally. The top-fill design means no awkward tank flipping or spills. Just pour and go. (We've all been there with the old spill-and-swipe routine.)
Perfect for bedrooms? You bet. With a 4L tank, it can run for up to 32 hours. That's over a day of moisture without a refill. Ideal for those who value sleep over constant maintenance.
Want to add some zen? Toss in your favorite essential oils (not included, because we don't know if you're a lavender or eucalyptus person) and turn your room into a spa. Or at least smell like one.
And for those nights when you're not ready to face the dark, the ambient night light has settings to match your mood—whether you're going for 'chill' or 'deep space exploration.'
General specs
- Brand: Dreo
- Model: HM311
- Seller: Amazon
- Special Features: Night Light, Adjustable Humidity Control, Easy Top-Fill, 28dB Ultra-Quiet Operation, Aroma Diffuser
- Filter Type: Pre Filter
- Floor Area: 300 Square Feet
- Operation Mode: Ultrasonic
- Product Dimensions: 5.51"D x 11.02"W x 10.16"H
- Item Weight: 3.12 pounds
- Room Type: Office, Kids Room, Bedroom, Living Room, Nursery
- Included Components: User Manual*1, Cleaning Guide*1, Cleaning Brush*1, Humidifier*1, Aroma Pad *2 (1 Pre-Installed)
- Voltage: 120 Volts
- Wattage: 26 Watt-hours
- Control Method: Touch
- Shape: Oval
If you are interested in more details, you can find full information on the seller's page.
Buy on Amazon
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Shipping options
United States
Comparison with similar products
| This item | Recommendations | |||||
|---|---|---|---|---|---|---|
Dreo HM311
|
Dreo DR-HHM004
|
Dreo HM735S
|
Dreo DR-HHM006 30H & 26dB Quiet Runtime
|
Dreo DR-HHM007S Warm & Cool Supersized Mist
|
Coolfiqu LP-2113 Warm and Cool Mist Humidifiers
|
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| Brand | Dreo | Dreo | Dreo | Dreo | Dreo | Coolfiqu |
| Model | HM311 | DR-HHM004 | HM735S | DR-HHM006 | DR-HHM007S | LP-2113 |
| Color | ||||||
| Rating |
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| Price | $39.99 | $56.97 | $139.99 | $39.99 | $107.94 | $39.99 |
| Seller | Amazon | Amazon | Amazon | Amazon | Amazon | Amazon |
| Update | June 14, 2025 | June 14, 2025 | June 10, 2025 | June 14, 2025 | June 14, 2025 | May 13, 2025 |
| Special Features | Night Light, Adjustable Humidity Control, Easy Top-Fill, 28dB Ultra-Quiet Operation, Aroma Diffuser | Night Light, Adjustable Humidity Control, Easy Top-Fill, 28dB Ultra-Quiet Operation, Aroma Diffuser | Night Light, Digital Display, Smart Control, Removable Tank, Easy Top-Fill, Aroma Diffuser | Night Light, Adjustable Humidity Control, Digital Display, 30H Timer, Humidistat | Night Light, Adjustable Humidity Control, Digital Display, Removable Tank, Aroma Diffuser | |
| Filter Type | Pre Filter | Pre Filter | Demineralization Cartridge | |||
| Floor Area | 300 Square Feet | 500 Square Feet | 700 Square Feet | 300 Square Feet | ||
| Operation Mode | Ultrasonic | Ultrasonic | Ultrasonic | Ultrasonic | Ultrasonic | |
| Product Dimensions | 5.51"D x 11.02"W x 10.16"H | 5.91"D x 11.42"W x 12.4"H | 10.24"D x 8.86"W x 30.91"H | 7.6"D x 10.2"W x 7.6"H | 6.73"D x 12.01"W x 14.45"H | |
| Item Weight | 3.12 pounds | 3.87 pounds | 5.94 pounds | 4.09 pounds | 6.93 pounds | |
| Room Type | Office, Kids Room, Bedroom, Living Room, Nursery | Kids Room, Office, Bedroom, Living Room, Nursery | Kids Room, Office, Whole House, Large Room, Living Room, Bedroom, Nursery | Kids Room, Office, Bathroom, Study Room, Nursery | Kids Room, Office, Bedroom, Living Room, Nursery | |
| Included Components | User Manual*1, Cleaning Guide*1, Cleaning Brush*1, Humidifier*1, Aroma Pad *2 (1 Pre-Installed) | User Manual*1, Cleaning Guide*1, Cleaning Brush*1, Humidifier*1, Aroma Pad *2 (1 Pre-Installed) | User Manual x 1, Aroma Pad x 2, Screw x 1, 11L Humidifier x1, Cleaning Brush x 1 | Power Cord, Water Tank, Humidifier Body | Aroma Pad x 1, User Manual x 1, 8L Humidifier x1, Cleaning Brush x 1 | |
| Voltage | 120 Volts | 120 Volts | 120 Volts | 120 Volts (AC) | ||
| Wattage | 26 Watt-hours | 26 Watt-hours | 29 watts | |||
| Control Method | Touch | Touch | App, Remote, Touch, Voice | Touch | App, Touch, Voice | |
| Shape | Oval | Oval | Square | Round | ||
Top Fill 4L Supersized Cool Mist Humidifier
Reviews
Marcin Bianchi
March 27, 2025
Simon Perez
March 27, 2025
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March 27, 2025
Storm
March 26, 2025
Dolly
March 26, 2025
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March 25, 2025
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March 25, 2025