HayGem DQ702 Ultrasonic Humidifier and Aroma Diffuser

Aroma: HayGem DQ702 is a compact, 120-millilitre ultrasonic humidifier and essential-oil diffuser with a night light and automatic shut-off. Its small tank and listed mist output suit personal spaces, while the stated runtime and USB power details should be checked against how you plan to use it.

At a glance

Combines ultrasonic cool mist, essential-oil diffusion and ambient lighting in one compact unit.
The listing gives a 120 mL tank capacity and a mist output of 10-15ML/H.
Automatic shut-off is claimed when water is low or the tank is removed.
Button operation is described for switching mist and lighting on or off.

Price

$31.44Save 15%

Reference price: ~~$36.99~~

Price checked: 13 Nov 2026

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Pros and cons

Pros

Small 120 mL capacity and listed dimensions make it suited to a desk or bedside table.
The listing describes automatic shut-off for low water or tank removal.
Mist, aroma diffusion and ambient lighting are presented as combined functions.

Cons

The 120 mL tank is small, so it may need frequent refilling during longer use.

Technical specifications

16 specifications

Identity
Brand	HayGem
Model	Diffuser/humidifier -DQ702
Colour	Black
Material	Acrylic

Mist and operation
Operation mode	Ultrasonic
Capacity	120 Milliliters
Mist output	10-15ML/H
Listed continuous operating time	8-12 hours
Special features	Aroma Diffuser, Auto Shut Off, Night Light, Quiet

Controls and power
Control method	Push Button
Power source	Corded Electric
Wattage	10 watts

Dimensions and installation
Dimensions (D x W x H)	9.5D x 9.5W x 16H centimetres
Weight	260 Grams

Other listing details
Country of origin	China
Warranty description	One-year replacement warranty—please contact us

What to know before buying

Listing details to confirm

The listing is inconsistent about power: specifications say Corded Electric and 10 watts, while product instructions describe a Type-C power cord and 5V input, with output above 5V recommended for better mist. It also claims 8-12 hours of operation without explaining the conditions, despite listing 120 mL capacity and 10-15ML/H output. Confirm the power connection and realistic runtime for your setup.

Who is it for?

A good fit for

People wanting a small humidifier and aroma diffuser for a desk, bedroom or nursery.
Buyers who want an ambient light alongside mist and essential-oil diffusion.

Less suited to

People seeking a large-capacity humidifier or an explicitly specified room coverage level.
Buyers who need clearly established power compatibility or runtime before purchase.

HayGem DQ702 Ultrasonic Humidifier and Aroma Diffuser · photo 2 — Additional product photo 2

Frequently asked questions

Can the HayGem DQ702 be used with essential oils?

The listing describes it as an aroma diffuser and says essential oils can be added. It does not specify oil types or a recommended quantity.

How large is the water tank?

The listed capacity is 120 Milliliters.

How is the DQ702 powered?

The specifications state Corded Electric, while the instructions mention a Type-C cord and 5V input. Confirm the supplied connection and compatible power source before buying.

Does it switch off when water runs low?

The listing claims automatic shut-off when the water level is low or the tank is removed.