1Has 30ml large water tank, keep hydrating your skin and meet water requirements throughout the day. 2Can make the liquid inside the water tank into nano spray, which is easier to be absorbed by skin, keep the skin moist at any time. 3Relieves irritated skin and cools fever, replaces eye drops when your eyes are dry. 4Good restoration function which helps to soothe the sunburnt skin and allergic skin. 5Portable, you can put it into your bag easily and use it anywhere and anytime.