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Now Portable USB Ultrasonic Oil Diffuser

Now Portable USB Ultrasonic Oil Diffuser

4.4(187 ratings)

Best price now

$19.19at WalmartChecked 12 h ago

25% under what the other stores charge

Compared across 3 stores. Prices are checked against each store and labelled with when.

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Price facts

  • Lowest price today: $19.19 at Walmart (checked Nov 10, 2026).
  • Checked at 3 stores.

Our take on the Now Portable USB Ultrasonic Oil Diffuser

The Now Portable USB Oil Diffuser is a small, BPA-free ultrasonic diffuser that runs on USB power and provides up to 6 hours of continuous mist. It comes with a carrying case, making it easy to use at home, in the office, or while traveling. Its compact size and color-rotating light are convenient, but the small tank means frequent refills. Compared to larger diffusers, it offers portability but lacks features like timers or adjustable mist levels.

Best forTravelers who want aromatherapy on the goSmall rooms and desksUSB power usersThose who prefer a compact, portable diffuser
Pros
  • Portable and lightweight with included carrying case
  • USB-powered for use with laptops, power banks, or adapters
  • Up to 6 hours of continuous mist
  • BPA-free and made with recycled plastic
  • Color-rotating light adds ambiance
Cons
  • Small tank requires frequent refilling
  • No timer or adjustable mist settings
  • May produce less scent in larger rooms
  • Light cannot be turned off independently on some units

Now Portable USB Ultrasonic Oil Diffuser prices at every store

  • WalmartNew

    In stockSold by Supplements Geeks

    $19.19Checked 12 h ago
    Visit Walmart
  • Vitacost.comNew

    In stock

    $25.51Checked 12 h ago
    Visit Vitacost.com
  • Macy'sNew

    In stock

    $30.40Checked 12 h ago
    Visit Macy's

Now Portable USB Ultrasonic Oil Diffuser price history

Lowest price we've seen: $19.19 on Nov 10 at Walmart. Tracked across 3 stores since Nov 10.

What reviewers say

  • 4.4 / 5187 ratings

Reviewers appreciate the portability and ease of use, often using it in small spaces like offices or while traveling. However, some find the tank capacity limiting and wish for more control over the light and mist.

What people mention
  • PortabilityPraisedUsers like the small size and included case for travel.
  • Tank sizeCriticisedThe small water tank requires frequent refilling, especially for all-night use.
  • USB powerPraisedConvenient to power from a laptop or power bank.
  • FeaturesMixedSome wish for a timer or adjustable mist, but others find it sufficient for basic use.
  • LightMixedThe color-rotating light is enjoyed by some, but others find it too bright or distracting.

Specifications

Product Type
Oil Diffuser
Refill
No
Longevity
Up to 6 Hours Run Time
Free Of
BPA Free
Contains
Essential oils
Environment
Home, Office
Typical Users
Female, Adults
Power Source

Questions and answers

How long does the Now Portable USB Oil Diffuser run on a full tank?
It runs for up to 6 hours on a full tank, depending on the mist setting and water level.
Can I use essential oils with this diffuser?
Yes, it is designed for use with essential oils and tap water.
Does it have a timer or auto shut-off?
No, it does not have a timer or auto shut-off feature; it runs continuously until the water runs out or it is turned off.
What is included in the box?
The diffuser comes with a portable carrying case and a USB power cable.
Is the light adjustable or can it be turned off?
The light cycles through colors, but it cannot be turned off independently on most units; it stays on while the diffuser is running.
How do I clean the diffuser?
Clean the tank with a soft cloth and mild detergent, and use a cotton swab to clean the ultrasonic plate. Do not submerge the unit in water.
Where is the Now Portable USB Ultrasonic Oil Diffuser cheapest?
At Walmart, for $19.19, 25% under what the other stores charge, as of our latest check.
What do buyers say about the Now Portable USB Ultrasonic Oil Diffuser?
Rated 4.4 out of 5 from 187 ratings.
Where can I buy the Now Portable USB Ultrasonic Oil Diffuser?
3 stores we checked sell it, including Vitacost.com, Macy's, Walmart.

Stores we've priced the Now Portable USB Ultrasonic Oil Diffuser at

  • Macy's deals and prices
  • Walmart deals and prices

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USB
Type
Oil diffuser
Color
Color Rotating
Material
BPA Free
Shape
Rectangular
Design Style
Contemporary
Application Area
Home, Office
Usage
Continuous
Ingredients
Tap water, Essential oils
Depth
7.6 cm
Height
14 cm
Weight
0.18 kg
Width
7.6 cm
Included Accessories
Portable Carrying Case
Recyclable
Made with recycled plastic
Release Date
2019-12-11