1Advanced Technology: Utilizes micro porous MESH technology to produce fine and cool mist. Quiet operation, almost noiseless, with noise levels as low as 25 decibels. 2Portable Design: The mesh atomizer machine features a mini design that fits easily in your pocket, handbag, computer bag, and can be used anytime, anywhere. 3Efficient: Handheld steam inhaler creates fine atomization, better absorption of small particles, atomized particles are 14m, and the delivery efficiency is higher. 42 Power Sources: The handheld atomizer is convenient for home travel, using 2 alkaline batteries (AA batteries not included) or using a USB power extension cord. 5Scope of Application: This handheld atomization machine is suitable for adults, children and all ages. Housewives can also use it for beauty.