High quality ABS material， certified by CE， ROHS quality inspection certification， environmentally friendly， safe and non-toxic， odorlessUltrasonic water atomized technology， will completely decompose liquid water to atomized molecules. Increase air moisture， optimize your living space， to prevent drying， keep the skin moist.USB data cable power， plug it into your computer， laptop or power adapter after starting work.6 hours automatically shut down， safer to use， and if you want to continue to use， press the open key. 200ML water capacity， can be used continuously for 5-6 hours. The noise is less than 30 db when working， super-quiet. Suitable for the bedroom， study， office， living room， yoga room， hotel， baby room and so on.