300ml Mini Cool Mist Humidifier with Whisper-Quiet Ultrasonic Operation and Multicolor LED Night Light for Desktop Use

Dry air can affect comfort during sleep, work, or study. This 300ml cool mist humidifier provides effective moisture output of 25-35ml per hour with an ultra-quiet operation below 30 dB. Its compact size and USB power make it easy to place on a desk, bedside table, or office shelf. The integrated multicolor LED night light adds a gentle ambient glow without harsh brightness. Two mist levels give you control over humidity output, while the auto shut-off feature ensures safe overnight use. Designed for personal spaces, this humidifier meets the practical need for portable, low-noise humidification without complex setup.

Features and Construction

Built around ultrasonic technology, this humidifier delivers fine cool mist with minimal energy consumption at 2W rated power. The top-fill design simplifies refilling and cleaning, and the one-piece construction removes the need to detach a separate water tank. Each component is selected for straightforward daily maintenance.

Material and Build

The outer casing is made of lightweight plastic, keeping the total weight to just 110g. A cotton filter stick wicks water from the 300ml tank to the ultrasonic transducer. The unit runs on DC 5.0V/1.0A input via the included USB cable, making it compatible with standard USB ports on computers, power banks, or wall adaptors. No tools are required to replace the filter stick.

Size and Practical Fit

The humidifier is designed for personal desktops and small rooms. Its 300ml water tank provides up to 6 hours of operation on intermittent mist mode or 4 hours on continuous mode. The product dimensions are not specified in the source text, but the weight and capacity indicate a footprint that fits beside a monitor, lamp, or phone.

Uses and Placement

This humidifier suits situations where quiet, localized moisture is needed. The multicolor LED night light can be used as a subtle night lamp or mood light. Place it on a nightstand, office desk, or study table for personal use.

Event or Professional Use

In a home office or small consulting room, the humidifier adds humidity without drawing attention. The noise level below 30 dB is comparable to a whisper, so it will not disrupt phone calls or video conferences. The USB power lets you plug it into a laptop or power bank for flexibility.

Everyday Home Use

On a bedside table, the humidifier helps maintain comfortable air moisture during sleep. The auto shut-off function turns the device off automatically when the water runs out, eliminating the need to wake up and check. The multicolor light can be left on or turned off, depending on your preference.

Benefits and Buying Value

The humidifier offers practical advantages for repeated daily use. Its simple top-fill system reduces the effort required to refill and clean. The replaceable filter stick ensures consistent wicking over time, with a suggested replacement every three months.

Reuse and Low Maintenance

The top-fill opening allows direct addition of tap water without removing the tank. Cleaning is straightforward with a soft cloth and mild detergent. The filter stick is the only consumable part, and replacing it every few months keeps mist output steady. No essential oils should be added, as the device is designed for water only.

Why Choose This Product

For anyone needing a small, silent humidifier with simple controls and a night light, this model covers the essentials. Two mist levels, auto shut-off, and USB power make it a practical choice for home, office, or travel. The 300ml capacity balances portability with useful runtime, and the colour options (black, pink, white) allow personal preference.