Portable Mini USB Cool Mist Humidifier 220ml

Mini humidifier with a 220ml tank for desks, bedrooms and travel.

This portable USB cool mist humidifier puts a small puff of moisture into the air right next to you, without the bulk of a full-room unit. Sits on a desk, a nightstand or a hotel side table, and powers off any USB port.

Why this mini humidifier?

• 220ml tank: Sized for personal-space humidification rather than full-room coverage.
• USB powered: Runs off a laptop, power bank or USB adapter.
• Cool mist: Quiet, room-temperature mist suitable for desks and bedside tables.
• Travel-friendly: Compact footprint slips into a carry-on or weekend bag.

Specs and details

• Tank capacity: 220ml
• Mist type: cool mist
• Power: USB
• Best for: personal desk, bedside, small rooms, travel

Frequently asked questions

How long does a 220ml humidifier last on one fill?
A 220ml tank typically runs for several hours depending on mist mode. Continuous mode drains the tank faster, while intermittent mode stretches the run time across a workday or night.

Can I use this mini humidifier with tap water?
Most small humidifiers prefer distilled or filtered water, which keeps mineral buildup low inside the tank and extends the life of the unit. Wipe the tank between refills.

Is the USB humidifier safe to leave on overnight?
Many small humidifiers include an auto-off feature when the tank is empty. Place it on a hard, level surface, keep cords clear, and unplug it if you'll be away for a long stretch.

What size room is this mini humidifier good for?
A 220ml mini humidifier is built for personal spaces such as a desk, nightstand or small bedroom, not large rooms. For full-room coverage, choose a larger-tank model.