It is made of BPA-free materials to ensure the health of babies and young children. Rain cloud cold mist humidifier helps relieve dry skin, cough, etc. Children's rooms, bedrooms and nurseries can be used safely (pull out the small trees in the humidifier, replace the filter cotton sponge) Ultra quiet: When the sweet cold mist humidifier is working, the sound will not exceed 36 decibels. Create a calm and comfortable environment for children, do not disturb study, work or sleep, and stay away from those annoying sounds. Removable use: This small desktop humidifier uses a USB interface to charge, the charging time is about 2.5H, and it can be used for about 3.5H. When the humidity is insufficient, the humidifier automatically switches off. (Cotton sub is in dry state and need to wait 1 minute to use it. Tap water is recommended) Exploration extraction moon humidifier, the cabin can be opened, cute doll, large spray does not leak, personalized design, The size is right Best Gift: This humidifier is not only a gift for children, but also the best gift for family, friends and relatives.