All Humidifiers in the market at the moment, with tank besides the necessary electronic component, so it become unconvenient while packing and travelling due to the big volumn and weight. The designer creat a new idea, make a simple and mini humidifier in history-Donut Humidifier. Just need a cup with water, connect the USB cable, put the Donut Humidifier on the water, touch lightly the switch, then you're able to feel the nourish of mist.
Product size: 50×50×20mm
Weight:35 g
Clock:Pink,Blue,White