US
Dreo

Dreo HM717S Smart Warm and Cool Mist Humidifier 8L

  • 8 liter tank, up to **600 sq ft**
  • Warm and cool mist, ultrasonic
  • 28 dB noise level
  • App, touch and voice control, Alexa compatible
  • Activated carbon and demineralization filter
  • Runtime conflict: title says 80 hours, specs say 80 minutes
  • 6.9 pounds, 6.73 x 12.01 x 14.45 inches

Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A large-room ultrasonic humidifier with warm and cool mist, humidity control and app or voice operation. The run time is listed two different ways, so confirm it before relying on overnight use.

As an Amazon Associate I earn from qualifying purchases. ProductDome earns a commission when you buy through links on this page.

ASIN: B0DT48R3BRModel: HM717SCategory: Humidifiers

Colors Available

BlackSilver

Need a different one? Pick on Amazon →

Overview

Not a bedside mini unit, this Dreo is a large tank ultrasonic humidifier made for big rooms, nurseries and offices. A removable tank, aroma pad and digital display come with both warm and cool mist.

Adjustable humidity, app and voice operation and a night light make it a flexible room unit, and the filters handle minerals and odors. The limitation is conflicting information on how long a tank lasts and no stated warranty.

Who it's for

Owners of large rooms, plant corners and nurseries who want a set humidity level and smart-home control suit it. Anyone with a small desk or limited shelf space should choose differently.

Pros and cons

Pros
  • Warm and cool mist options
  • Adjustable humidity control
  • App, touch and voice operation
  • Quiet noise level listed
Cons
  • Runtime listed inconsistently
  • Warranty not listed
  • Sizable unit for small rooms

Performance notes

Ultrasonic vibration breaks water into fine mist, and a sensor reads room humidity so the unit can hold a set level. The warm mist option heats water before release, while the filters reduce minerals and odors in the tank water. Room size sets how long it takes to reach the target level.

Specifications

BrandDreo
ModelHM717S
Dimensions & fit
Item Dimensions D X W X H6.73 x 12.01 x 14.45 inches
Item weight6.9 pounds
Capacity & performance
Capacity8 liters
Noise level28 dB
Power & efficiency
Power SourceCorded electric
Construction & materials
ColorSilver
MaterialBPA-free plastic
Included components
Included ComponentsHumidifier, aroma pad, cleaning brush, user manual
Other details
Floor AreaUp to 600 sq ft
Runtime80 hours in title, 80 minutes in specs
Operation ModeUltrasonic
Filter TypeActivated carbon, demineralization
Control TypeApp, touch, voice
Other Special Features Of The ProductAdjustable humidity control, aroma diffuser, digital display, night light, removable tank
Mist settingsWarm and cool

Closest rivals on specs

Levoit Smart Humidifier 6.2L
  • Floor Area 600 vs 536 sq ft (+12%)
Carepod Cube Plus X50V Stainless Steel Humidifier
  • Floor Area 600 vs 700 sq ft (-14%)
Vicks V745 Warm Mist Humidifier
  • Floor Area 600 vs 500 sq ft (+20%)
Compare all side by side

Frequently asked questions

What comes in the box with the DREO HM717S humidifier?

An 8L humidifier, an aroma pad, a cleaning brush and a user manual.

How long does the DREO HM717S run on a tank?

The title says 80H while the specs say 80 minutes. Confirm with Dreo before relying on either.

Does the DREO HM717S work with Alexa?

Yes. The title lists app, voice and Alexa support.

Is the DREO HM717S only a cool mist humidifier?

No. It offers warm and cool mist.