Portable USB Doughnut Humidifier Air Essential Oil Purifier Aroma Diffuser

Convenient Travel Size - Use glass of purified water as water source to add comfort in hotel room, conference room, bathroom, etc
USB Powered - simply use phone charger, computer USB port or even a portable power bank to power the device
Relief from dry air, cold, flu and other dryness related symptoms during travel
Use it in dorm rooms to provide comfort with minimal cost and easy care
Compact and lightweight mini humidifier perfect for use in bedroom, office, car, hotel, tent, or even on flights