OPOLAR H02 Personal Portable Humidifier, Cool Mist Ultrasonic Humidifier, Mini USB Humidifier for Home, Office, Car & Anywhere, Water-tight Design, Dual Mist Modes 2016 New design: another piece of art work from opolar, giving you a wonderful small, sleek and portable humidifier Unique water-tight feature and dual mist modes Excellent performance: covers up to 60 sq.ft Portable and convenient: works with any usb-based power source