Humidifier 500ml 28dB
A portable 500 ml cool-mist humidifier with two spray modes, auto shut-off and quiet 28 dB operation for travel or desktop use
- Hydrates skin and reduces dryness with 500 ml capacity
- Runs up to 12 hours on intermittent mist mode
- Operates below 28 dB for quiet bedrooms and offices
- Auto shut-off stops power when water drops below safe level
- USB powered with included cable using certified 5V/1A adapter
Portable 500 ml USB humidifier
The 500 ml mini humidifier runs from any USB power source delivering DC 5 V at 1 A, making it suitable for desktops, bedside tables or travel bags. Its compact footprint of 3.74 by 5.07 inches fits tight spaces while the tank holds enough water for up to 12 hours of intermittent mist. The cool-mist design helps relieve dry skin and irritated airways without heating the room. It is intended for users who want a small, cable-powered humidifier for personal areas.
Quiet 28 dB operation and low power draw
Noise stays below 28 dB during use, so the unit remains unobtrusive in bedrooms or offices. Power consumption ranges from 1.5 to 2 watts, drawing minimal current from the USB supply. An integrated water-level sensor cuts power automatically when the tank runs low, preventing dry running and spills. The two mist modes — continuous for 6 hours or intermittent for 12 hours — let the user balance runtime against output.
Included USB cable and cotton wick preparation
A USB cable is supplied in the box; a certified 5 V/1 A adapter must be provided separately. Only clean tap water should be used — essential oils, perfumes, distilled or filtered water can clog the cotton wick. Before first use the wick must soak for several minutes, after which mist appears within about one minute. Following these steps keeps output in the 30 to 50 ml per hour range and avoids premature wick failure.
How it compares
Measured against everything we stock in Humidifiers & Mist Diffusers, at today’s prices. Recalculated every night.
- Price $22.99
- Cheaper than about 58% of the 132 comparable items (median $25.49).
Specifications
No published specifications for this item yet.
Questions about this item
How do I set up the humidifier so the cotton wick works properly?
Soak the cotton wick in clean tap water for 3–5 minutes before first use, connect the USB cable to a certified DC 5V/1A adapter, then allow up to 1 minute for mist to appear after powering on.
Which part will need replacing and how often?
The cotton wick can clog if essential oils, perfumes, distilled or filtered water are used; replace it when mist output drops noticeably.
What limits the continuous run time on a full 500 ml tank?
In continuous mode the unit runs for 6 hours; in intermittent mode it runs for 12 hours before the auto shut-off activates when water falls below the safe level.
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