DREO 747S 11L Smart Ultrasonic Humidifier, 700 ft²

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Product guide

DREO 747S 11L Smart Ultrasonic Humidifier, 700 ft²

DREO 747S is an 11-liter smart ultrasonic humidifier listed for rooms up to 700 square feet. Its large tank, humidity controls, and app and remote operation suit buyers who want adjustable moisture with fewer refills, though the stated runtime and quietness are manufacturer claims rather than independently confirmed results.

At a glance

The 11-liter tank and stated coverage of up to 700 square feet target larger rooms and reduce the need for frequent refills, according to the listing.
App, remote, touch, and voice control methods are listed, alongside adjustable humidity control and a humidistat.
The listing describes a top-fill design, sleep mode, RGB lighting, a timer, an aroma tray, and a rotating nozzle.

Price

$99.96Save 17%

Reference price: ~~$119.99~~

Price checked: Nov 13, 2026

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Often bought together

DREO 6L Humidifiers for Bedroom, 60H Runtime, 28 dB Quiet, HM524 | Precise Humidity Control, Easy to Refill & Clean, Nightlight, Cool Mist Humidifiers for Large Rooms, Baby Nurseries & Plants

$49.91

DREO 4L Humidifiers for Bedroom, 36H Runtime, 28 dB Quiet, HM311 | Easy to Refill & Clean, BPA-Free, Nightlight, Supersized Air Humidifiers for Large Room, Baby Nurseries, Plants, Indoor

$33.99

Pros and cons

Pros

Large listed capacity and coverage are a practical fit for buyers humidifying a sizable room.
Several control options and adjustable humidity settings allow operation from the device or remotely.
Sleep mode is described as dimming lights and reducing noise.

Technical specifications

14 specifications

Identity
Brand	DREO
Model	DR-HHM017S White
Color	White
Operation mode	Ultrasonic

Capacity and coverage
Tank capacity	11 liters
Listed floor area	700 square_feet
Listed runtime	100 hours

Features and controls
Special features	Adjustable Humidity Control, Aroma Diffuser, Child Lock, Humidistat, Leakproof
Control methods listed	App, Remote, Touch, Voice

Power and battery
Power configuration	Corded Electric

Dimensions and installation
Dimensions (D × W × H)	9.65"D x 9.65"W x 31.73"H
Weight listed	5.7 pounds
Shape	Rectangular

Materials and protection
Material listed	Plastic

What to know before buying

Listing details to confirm

The title identifies the product as 747S and claims 21dB quiet operation, while another supplied listing title for the same model is HM735S and claims 26dB. The supplied details identify DR-HHM017S White. The 21dB claim is not independently confirmed, so verify the exact model and noise specification for the selected listing. The stated 100-hour runtime and 700-square-foot coverage are also listing claims, not guaranteed results.

What’s in the box

Included

Humidifier, DR-HHM017S, quantity 1
Remote control with 2 AAA batteries, quantity 1
User guide, quantity 1
Set of accessories

Who is it for?

A good fit for

People looking for a large-capacity humidifier for a bedroom, living room, office, or other sizable space.
Buyers who want app or remote access and adjustable humidity settings.
Users who value a top-fill design and a listed aroma diffuser feature.

Less suited to

Shoppers who need independently verified noise, coverage, or runtime measurements.
Buyers who need a compact humidifier, since the listed height is 31.73 inches.

DREO 747S 11L Smart Ultrasonic Humidifier, 700 ft² · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 132 ratings

5 stars79%79%
4 stars9%9%
3 stars2%2%
2 stars3%3%
1 star7%7%

Customer feedback highlights perceived effectiveness, quiet operation, humidity control, tank capacity, and ease of use. Those reports are relevant to the listed 11-liter capacity and adjustable humidity features, but do not establish measured coverage, runtime, or noise performance. The aggregate ratings are mostly five-star, with a smaller range of lower ratings, so experiences are not uniformly positive.

Positive themes

Customers describe the humidifier as effective and appreciate its quiet operation.
Feedback also praises humidity control, tank capacity, setup, and remote operation.

Frequently asked questions

How large a room is this humidifier listed to cover?

The listing specifies a floor area of 700 square_feet. This is a manufacturer claim, not a guaranteed result for every room.

What is the listed tank capacity and runtime?

The listed capacity is 11 liters and runtime is 100 hours. Actual runtime can depend on operating conditions, and the supplied information does not specify the conditions for that figure.

Can it be controlled remotely?

The listed control methods are App, Remote, Touch, Voice. The supplied information does not identify compatible voice platforms.

Does the listing confirm a 21dB noise level?

No. The main title claims 21dB, while another supplied listing title for the same model claims 26dB and uses the HM735S name. Check the selected listing's exact model and noise claim.