1Can make the liquid inside the water tank into nano-scale mist, which is easier to be absorbed by skin, keep the skin moist at any time. 2Good restoration function which helps to soothe the sunburnt skin and allergic skin. 3Has 20ml large water tank, can keep spraying for 3 minutes and hydrating your skin. 4Cold fog can help reduce pores, tighten skin and calm the skin. 5Delicate and portable, you can put it into your pocket, bag or dressing case easily.