DREO HM524 6L Ultrasonic Humidifier

The DREO HM524 is a 6-liter ultrasonic humidifier with top-fill access, adjustable humidity control, an aroma diffuser, and a night light. The listing claims up to 60 hours of operation in sleep mode, so that runtime is mode-specific rather than a general maximum for every setting.

At a glance

Top-fill design is intended to make refilling easier, and the 6-liter tank reduces how often it needs replenishing compared with smaller reservoirs.
The claimed 60-hour runtime applies to sleep mode. Actual runtime may differ by selected setting.
Touch controls, adjustable humidity control, three mist settings and a timer allow adjustment of operation.
Aroma diffuser and night light are listed features, alongside a claimed 28 dB operating level.

Price

$49.91Save 17%

Reference price: ~~$59.99~~

Price checked: Nov 13, 2026

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Often bought together

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

DREO 11L Smart Humidifier Large Room 700 ft², 100H Runtime, 21dB Quiet 747S | Top Fill, 1500+RGB Light, APP & Remote Control, Clean Tank Technology, 12H Timer, Cool Mist Humidifiers for Bedroom, White

$99.96

Pros and cons

Pros

Large 6-liter tank paired with a top-fill design.
Multiple mist settings, touch control and adjustable humidity features provide ways to tailor operation.
Aroma diffuser and night light add functions beyond humidification.

Technical specifications

24 specifications

Identity
Brand	DREO
Model	HM524

Humidification
Technology	Ultrasonic
Tank capacity	6 liters
Listed coverage	500 square_feet
Claimed mist output	300 ml/hour
Claimed mist particle size	5 μm
Claimed mist height	up to 40 inch
Claimed runtime	60 hours

Features and controls
Listed features	28dB Ultra-Quiet Operation, Adjustable Humidity Control, Aroma Diffuser, Easy Top-Fill, Night Light
Control method	Touch
Mist settings	three mist settings
Nozzle adjustment	15° nozzle
Timer range	0 to 12 hours
Humidity sensor accuracy claim	5% accuracy
Sensor distance claim	up to 6 ft away

Power
Power configuration	Corded Electric
Voltage	120 volts

Dimensions and appearance
Dimensions	5.91"D x 11.42"W x 12.4"H
Weight	3.9 pounds
Color	White
Shape	Oval

Materials and protection
Material listed	BPA-Free, suitable for baby, Plastic
Filter type	Pre Filter

What to know before buying

Listing details to confirm

The listing gives the electrical specification as “26 watt-hours,” a unit of energy rather than power. Treat that entry as a source-listed value, not a confirmed power rating. The 60-hour claim is specifically for sleep mode. Coverage, output, sensor accuracy and noise figures are listing claims, not independently verified measurements.

What’s in the box

Included

Aroma pad
Cleaning brush
Cleaning guide (1)
Humidifier (1)
User manual

Who is it for?

A good fit for

People seeking a top-fill humidifier with a large tank for a bedroom or other listed room type.
Buyers who want touch controls, adjustable humidity, several mist settings, a timer and a night light in one appliance.

Less suited to

Buyers who need a confirmed power rating or independently verified runtime, coverage or noise measurements before choosing.

DREO HM524 6L Ultrasonic Humidifier · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 3,291 ratings

5 stars76%76%
4 stars10%10%
3 stars4%4%
2 stars3%3%
1 star7%7%

Customer feedback highlights perceived effectiveness, quiet operation and easy cleaning, with some customers appreciating the large tank and all-day use. Reports about mist output and reliability are mixed, including accounts of units stopping misting or ceasing to work. For buyers choosing this model for longer stretches between refills, the tank capacity is relevant, but the reported reliability concerns make dependable continuous operation less certain. These are customer perceptions, not proof of a specific cause or failure rate.

Positive themes

Customers praise the humidifier's effectiveness and quiet operation.
Customers appreciate the large tank, easy cleaning and moisture without the room feeling damp.

Mixed feedback

Feedback on mist output is mixed, with reports of both good output and units that stop producing mist.
Reliability feedback is mixed, including reports of units stopping after a few weeks.