[Portable Mini Humidifier & USB Humidifier] The exquisite small design of the portable mini humidifier makes it very convenient to take anywhere. The USB power supply is compatible with any USB port device, which ensures that it can be used in the bedroom, office, car, power bank. [Humidifier ultra quiet and safe for the bedroom] The sound of this mini humidifier is less than 30 db, you will not be disturbed when you are sleeping or working. Perfect for bedroom, nursery, living room, office, car, hotel, office, plants. [Two spray modes and AUTO OFF]This humidifier with mist has two mist modes: Continuous and intermittent mode. In continuous mode, it will automatically turn off after 3.5 hours. In intermittent mode, it will automatically turn off after 6 hours. It turns off when the water level is low. So you don’t have to worry about the humidifier being damaged by water. You can use it at night without worrying about safety. [One-touch control car humidifier] Portable USB humidifiers