How long does the 160ml tank last?

A tank this size typically runs a few hours on continuous mist and longer on intermittent mist. Expect to refill it most days if you run it all evening.

Can I use it without essential oil?

Yes. It works as a plain humidifier with water only. Add a few drops of oil to the crystal stone when you want aroma.

Does it shut off when empty?

Yes. It has dry-run protection that turns the unit off automatically when the water runs out.

It runs on USB power, so it works from a laptop, power bank or USB wall adapter. No separate tank or cordless battery operation.

Is it good for a large bedroom?

No. Its small output is meant for a desk, nightstand or car. For a full bedroom, a larger ultrasonic or evaporative humidifier covers more space.

Wipe the tank and crystal stone with water and mild vinegar, and let them dry fully between uses to prevent residue and odor.

Crystal Humidifier USB Essential Oil Diffuser with LED Light

Best price now

$12.49at WalmartChecked Nov 3

Prices are checked against each store and labelled with when.

Visit Walmart

Crystal Humidifier USB Essential Oil Diffuser with LED Light

Best price now

$12.49at WalmartChecked Nov 3

Prices are checked against each store and labelled with when.

Visit Walmart

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Price facts

Last seen at $12.49 at Walmart on Nov 3.

Our take on the Crystal Humidifier USB Essential Oil Diffuser with LED Light

This is a small USB-powered humidifier and essential oil diffuser with a 160ml tank and a crystal stone that holds and slowly releases oil. It runs quietly, offers two mist modes, and doubles as an LED night light with a cycling or fixed color. It suits desks, nightstands, bathrooms and car cup holders where a compact, decorative unit is wanted. Against larger rivals it trades tank size and run time for portability and looks, and it lacks the smart features and coverage of full-size humidifiers.

Best forDesk and office useBedside night light and diffuserSmall rooms and bathroomsAromatherapy with essential oils

Pros

Compact and light, easy to move between rooms
Crystal stone holds and releases essential oil
Two mist modes with quiet operation
LED light cycles or holds a fixed color
Auto shut-off when the tank runs dry
USB powered for use at a desk or in a car

Cons

160ml tank needs frequent refills
Small output suits only a close personal space
No timer or app control
Light and mist share one button, so controls take learning

Crystal Humidifier USB Essential Oil Diffuser with LED Light prices at every store

WalmartNew
Availability unknown
$12.49Checked Nov 3
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Crystal Humidifier USB Essential Oil Diffuser with LED Light price history

Lowest price we've seen: $12.49 on Nov 3 at Walmart. Tracked across 1 store since Nov 3.

About the Crystal Humidifier USB Essential Oil Diffuser with LED Light

This small portable humidifier and essential oil diffuser has a crystal stone with a porous structure. The stone absorbs aromatherapy essence and releases the aroma continually.

The tank holds 160 ml, and the unit runs at low noise. It is small enough to carry and can be used in a bedroom, office, living room, bathroom or car. It is powered by USB and also works as a night light with an LED light.

Short press once to start spraying, and press again to turn it off. Two spray modes are available. Long press for 2 seconds to fix the light color or change the lighting cycle while it runs. When the tank runs out of water, a dry-burn protection turns the unit off automatically.

Material: ABS + PC
Color: Black
Tank capacity: 160 ml
Product size: 10 x 8.8 x 8.8 cm (3.94 x 3.46 x 3.46 in)
Package size: 10 x 8.8 x 8.8 cm (3.94 x 3.46 x 3.46 in)
Net weight: 300 g (0.66 lb)
Gross weight: 450 g (0.99 lb)
Power: USB powered
Lighting: LED light with cycling colors
Safety: Automatic shut-off when the tank is empty
In the box: 1 x humidifier, 1 x USB charging cable, 1 x manual

Specifications

Weight: 10.58 oz weight

Questions and answers

How long does the 160ml tank last?: A tank this size typically runs a few hours on continuous mist and longer on intermittent mist. Expect to refill it most days if you run it all evening.
Can I use it without essential oil?: Yes. It works as a plain humidifier with water only. Add a few drops of oil to the crystal stone when you want aroma.
Does it shut off when empty?: Yes. It has dry-run protection that turns the unit off automatically when the water runs out.
How is it powered?: It runs on USB power, so it works from a laptop, power bank or USB wall adapter. No separate tank or cordless battery operation.
Is it good for a large bedroom?: No. Its small output is meant for a desk, nightstand or car. For a full bedroom, a larger ultrasonic or evaporative humidifier covers more space.
How do I clean it?: Wipe the tank and crystal stone with water and mild vinegar, and let them dry fully between uses to prevent residue and odor.
Where is the Crystal Humidifier USB Essential Oil Diffuser with LED Light cheapest?: At Walmart, for $12.49, as of our latest check.