1 / 7DREO Smart Humidifier, 4 L Top-Fill Ultrasonic
The DREO Smart Humidifier is a 4 L top-fill ultrasonic model with app, touch and voice controls. Its listed 300-square-foot coverage and smart features suit bedroom or single-room use, while advertised runtime claims differ and should be treated as conditional.
At a glance
- Top-fill design and a 4 L tank are intended to reduce the need for frequent refills.
- App, touch and voice controls are listed, along with a digital display and timer.
- The listing advertises 28 dB operation and 36 hours of runtime, but other listed details give a different runtime.
Reference price: $79.99
Price checked: Nov 13, 2026
View offerAhead of Black FridayExplore the selectionOften bought together
Pros and cons
Pros
- Top filling avoids turning over the tank to refill it, according to the product description.
- App and voice control provide alternatives to on-device touch control.
- The listing describes a removable modular design intended to make cleaning easier.
Technical specifications
17 specifications| Brand | DREO |
|---|---|
| Model | Dreo Humidifier |
| Model number | DR-HHM001S Black |
| Tank capacity | 4 liters |
| Operation mode | Ultrasonic |
| Colour | Black |
| Listed coverage | 300 square_feet |
| Control methods listed | App, Touch, Voice |
|---|---|
| Voltage | 120 volts |
| Wattage | 25 watts |
| Power source | ac |
| Filter type | Demineralization Cartridge |
| Dimensions listed | 31.5D x 18W x 31.5H centimetres |
|---|---|
| Weight listed | 1.42 kg |
| Shape | Rectangular |
| Material type | BPA-Free, Plastic, Suitable for Baby |
|---|---|
| Runtime listed in specifications | 32 hours |
What to know before buying
Listing details to confirm
Runtime and capacity-related claims are inconsistent: the title and feature copy say 36 hours, while the technical details list 32 hours. Treat runtime as condition-dependent rather than a guaranteed duration. The product copy also claims 300-square-foot coverage and 28 dB operation, which are manufacturer claims, not independently verified measurements. A compatible DREO demineralization cartridge is described as not included. The listing says it can reduce limescale, while also describing filtered water as preventing limescale and white dust. Check cartridge needs and water guidance before use.
What’s in the box
Included- Aroma pad
- Cleaning brush
- Humidifier body
- User manual
Who is it for?
A good fit for
- Bedroom or other single-room buyers looking for a top-fill 4 L ultrasonic humidifier.
- People who want app, touch or voice controls and a timer.
- Buyers who prefer refill access from the top and a modular design described as removable for cleaning.
Less suited to
- Buyers who need one confirmed runtime figure before choosing. The listing gives both 32 and 36 hours.
- Those seeking a humidifier with a demineralization cartridge included in the stated package.

Customer reviews on Amazon
- 5 stars
73% 73% - 4 stars
11% 11% - 3 stars
6% 6% - 2 stars
3% 3% - 1 star
7% 7%
Customer feedback reports quiet operation, effective humidity control, ease of cleaning and satisfactory mist output. These impressions may matter for bedroom use and routine upkeep, but they are customer perceptions rather than confirmed performance figures. Feedback is mixed on auto shut-off, so buyers who rely on that behaviour may want to consider this uncertainty. The aggregate ratings are mostly five-star but also include a smaller spread of lower ratings, which does not identify specific causes.
Positive themes
- Customers describe the humidifier as quiet and say its humidity control and mist output work well.
- Customers appreciate ease of cleaning.
Mixed feedback
- Customer feedback is mixed about the auto shut-off feature.
Frequently asked questions
How large is the water tank?
The listed capacity is 4 liters.
What controls are listed?
The specifications list app, touch and voice controls. Feature copy also names Alexa and Google Assistant compatibility.
How long does it run per fill?
The technical details list 32 hours, while the title and feature copy claim 36 hours. Actual runtime is not established by the listing.
Is the demineralization cartridge included?
The product copy says the compatible DREO demineralization cartridge is not included.

Alternative options

DREO Humidifiers for Bedroom 3L Top Fill 30H & Cool Mist Air Humidifier | Cool Mist Humidifier for Baby Large Room, Ultrasonic with Oil Diffuser, Night light, Plants,360° Nozzle, Easy to Clean
$47.29

DREO Smart Air Purifiers for Bedroom Home, Pet Filter System, DREO 539AS | HEPA Sleep Mode, Air Cleaner for Pets, Smoke, Dust, Pollen, Odors, Wi-Fi/Voice/Alexa, PM2.5 Monitor, Auto, Turbo, DR-HAP009AS
$159.26

DREO 8L Smart Humidifiers for Bedroom 600ft², 80H Runtime Warm&Cool Supersized Mist Humidifier for Large Room Indoor, Quiet Whole House humidifier for Baby, Plants, with Alexa/Google, Black, HM717S
$144.49

Space Player Humidifier for Bedroom & Home, Cordless, 3L Top Fill, Quiet | Dual Mist, 4000mAh Rechargeable Battery, 4 Mist Modes, 2/4/8H Timer, Night Mode, Multicolor Night Light, Easy Clean
$49.99

8L Smart Humidifiers for Bedroom Large Room, 2.4Gal Cool Mist Top Fill Diffuser Ambient Light, App & Remote Control, Cover up to 505ft², 3 Mist Modes, 12H Timer,Quiet Humidifier for Home Office Plant
$129.99

let'me 10L Smart Humidifier Large Room 600 ft², 60H Runtime, Quiet 35dB | APP & Remote Control,Top-fill Design, 24H Timer & Night Light, Cool Mist Humidifers for Bedroom with Essential Oil Tray Black
$169.99

GoveeLife Smart Humidifiers for Bedroom Large Room, 6L Top Fill Humidifier | Cool Mist, Auto Mode, App & Voice Control, 60H Runtime, Quiet 26dB, Easy to Clean, RGB Nightlight for Baby Plants, Black
$75.99

DREO Humidifiers for Bedroom, Cool Mist Ultrasonic Humidifiers with Oil Diffuser, 30Hr Runtime, Top Fill 3L Tank, Humidity Sensor, Night Light for Baby, Nursery, 361° Nozzle for Plants and Home, Grey
$65.36

Levoit Humidifiers for Bedroom, 3.2L Top Fill, Dishwasher Safe, 23dB | Easy to Clean, 26 Runtime, Quiet Cool Mist for Baby, Night Light, Essential Oil Diffuser, Blue Light-Safe
$64.99

Afloia 5.5L Evaporative Humidifier, Mist-Free Humidifier for Bedroom, White | No Mist, No White Dust, 750mL/h Output, Auto Humidity Control, Top Fill, Up to 14H Runtime, for Baby, Plants & Large Rooms
$139.99

Levoit Humidifiers for Bedroom Large Room, 3L Top Fill, Oil Diffuser, White | Cool Mist for Baby Nursery and Plants, 360° Nozzle, Quiet Rapid Ultrasonic Humidification for Home Whole House
$79.99

DREO HM735S 11L Smart Humidifier Large Room 700 ft², 100H Cool Mist Air Humidifiers for Bedroom, Top-Fill Self-Cleaning Tank, 26dB, Auto Mode, Aroma Box, RGB Light, Remote & APP Control, Baby, White
$179.99





















