Get the ultimate comfort for your home with this HoMedics Ultrasonic Personal Humidifier. This mini humidifier is perfect for personal use and can be powered by either USB or battery. It has a 0.5 gal tank capacity and provides a micro fine mist for up to 4 hours of run time. The humidifier is made of plastic material and has a blue color. It features a USB connection and is 12 V voltage-compatible. This item is perfect for personal use, whether it's at home or in the office.