StoreDeal.ai store
Shop
  • Deals
  • Deal checker
  • Black Friday
  • Buying guides
  • Brands
  • Stores
Travel
  • Flight deals
  • Hotel deals
Company
  • Research
  • Press
  • Use in AI assistants
  • Contact
  • deal.ai apps
Black Friday 2026
  • Walmart
  • Best Buy
  • Target
  • TVs
  • Laptops
  • Headphones
  • Apple
  • Gaming
  • Vacuums
  • Kitchen
  • Toys
  • Smartwatches
  • Tablets
  • Furniture
  • Mattresses
© Deal.ai Inc.·2222 Ponce de Leon Blvd, Miami, FL 33134·support@deal.ai
TermsPrivacy
Deal.ai
U
USB Cool Mist Humidifier 300ml

USB Cool Mist Humidifier 300ml

Best price now

$30.99at VueChecked Nov 10

Prices are checked against each store and labelled with when.

Visit Vue

Ask our agent about this product

It checks today's price at every store, compares the alternatives and answers in about a minute.

Enter to send, Shift+Enter for a new line

Price facts

  • Last seen at $30.99 at Vue on Nov 10.
  • Our take on the USB Cool Mist Humidifier 300ml

    This is a compact USB-powered cool mist humidifier with a 300 ml tank and a mini ice-cube design that glows in changing colors. It offers two mist modes and a 360° rotating nozzle, and runs at a low 34 dB. It suits desk, bedside, car, or travel use where space is tight. Compared with larger humidifiers, it trades tank capacity and room coverage for portability and a built-in night light.

    Best forSmall desks and nightstandsCar and travel usePeople who want a soft night lightPersonal spaces up to a few hundred square feet
    Pros
    • Very compact: 3.4 in wide and 5.5 in tall
    • Two mist modes: continuous and intermittent
    • 360° rotating nozzle directs mist
    • Color-cycling LED light doubles as a night light
    • Quiet operation at 34 dB
    • USB powered from laptop, power bank, or car charger
    Cons
    • 300 ml tank needs frequent refills
    • Best for small personal spaces, not whole rooms
    • No auto shutoff mentioned
    • Light cannot be turned off independently

    USB Cool Mist Humidifier 300ml prices at every store

    • VueNew

      In stockReturn policy

      $30.99Checked Nov 10
      Visit Vue

    About the USB Cool Mist Humidifier 300ml

    This is a compact USB-powered cool mist humidifier with a mini ice-cube design on top. The top glows through a cycle of changing colors and can double as a night light. The light and the mist can be used independently, so the mist can run with the light off.

    It has a 300 ml tank and two spray modes: continuous or intermittent. Intermittent mode runs for several hours on a full tank, and continuous mode runs for a shorter time. A 360° rotating nozzle lets you aim the mist, and the unit shuts off automatically when the water level runs low.

    It runs on 5V USB power from a laptop, power bank, or car charger. It uses an ultrasonic cotton wick mechanism made for tap water. Use tap water only, not purified or distilled water or essential oils. Use a standard 5V USB source, not a fast-charging cable or adapter. Before first use, remove the cotton wick and soak it in water for 10 seconds, then reinsert it.

    Capacity
    300 ml
    Dimensions
    3.4 in (W) × 5.5 in (H)
    Power
    3W–5W
    Voltage
    5V USB
    Humidification
    Cool mist, ultrasonic cotton wick
    Spray modes
    Continuous or intermittent
    Nozzle
    360° rotating
    Noise level
    Under 36 dB, as low as 34 dB
    Lighting
    Colorful LED ice-cube top, can be turned off separately
    Safety
    Auto shut-off at low water level
    Water
    Tap water only
    Origin
    Made in Mainland China

    Questions and answers

    How long does the 300 ml tank last?
    Runtime depends on the mist mode. Continuous mode uses more water and will need refilling sooner; intermittent mode extends runtime by pausing between bursts. For a small desk or bedside, expect to refill every few hours of use.
    Can I use it in a car?
    Yes. It runs on USB power, so you can plug it into a car charger, laptop, or power bank. The compact size fits a cup holder or dashboard area.
    Does it have an auto shutoff?
    The product description does not mention an auto shutoff feature. You will need to turn it off manually when the tank runs low.
    Can I turn off the colored light?
    The light cycles through colors and is described as part of the design. There is no separate light control mentioned, so it stays on while the humidifier is powered.
    What is included in the box?
    The humidifier and a USB power cable are typically included. A wall adapter is not mentioned, so you may need to supply your own if you do not have a USB port available.
    Is it good for a bedroom?
    It is quiet at 34 dB and has a soft night light, so it suits a bedside table. However, the 300 ml tank is small for a full bedroom and may need refilling during the night.
    Where is the USB Cool Mist Humidifier 300ml cheapest?
    At Vue, for $30.99, as of our latest check.

    More humidifiers

    • M
      Mipow X Miffy Cool Mist Humidifier
      Mipow X Miffy Cool Mist Humidifier
    • M
      Mini Humidifier with Night Light USB Powered Cool Mist Quiet Operation Chinese Pagoda Tortoise Design Portable Desktop Humidifier
      Mini Humidifier with Night Light USB Powered Cool Mist Quiet Operation Chinese Pagoda Tortoise Design Portable Desktop Humidifier
    • T
      TotalComfort Cool Mist Ultrasonic Humidifier
      TotalComfort Cool Mist Ultrasonic Humidifier
    • H
      Honeywell Small Compact Ultrasonic Mini Cool Mist Humidifier with Adjustable Mist Control and Essential Oil Tray
      Honeywell Small Compact Ultrasonic Mini Cool Mist Humidifier with Adjustable Mist Control and Essential Oil Tray
    • V
      Vicks Mini FilterFree CoolMist Humidifier
      Vicks Mini FilterFree CoolMist Humidifier
    V
    Vicks Mini Filter Free Cool Mist Humidifier VUL525
    Vicks Mini Filter Free Cool Mist Humidifier VUL525
  • P
    PureMist Ultrasonic Cool Mist Humidifier
    PureMist Ultrasonic Cool Mist Humidifier
  • P
    Portable USB Ultrasonic Cool Mist Humidifier, Mini Water Bottle Humidifier
    Portable USB Ultrasonic Cool Mist Humidifier, Mini Water Bottle Humidifier