Portable USB humidifier with 200 ml: The portable humidifier is suitable for rooms, offices and cars without taking up too much space. The mini USB humidifier can easily be placed on any table and over any USB port can be connected to power supply to get more. Good results.Easy to carry: The mini USB humidifier is easy to carry. You can put it in your wallet, backpack and suitcase to take with you.Automatic switch-off in the event of a lack of water: The desktop humidifier automatically switches off the power supply in the event of a lack of water. You don't have to worry about it getting dry and burning. It is quieter than when the air conditioning is on and Doesn't affect your studies, work or sleep. Safe and convenient.Easy to use: The mini humidifier can be used with clean tap water or mineral water. You don't have to look for pure water. The only button can control the power, lighting and fog mode. The two modes of this Cold fog humidifiers can meet your different needs.Various Occasions: The portable humidifier is small and convenient to use in offices, yoga, cars, bedrooms, and travel scenes. Please do not add essential oils or distilled water to the humidifier as the product will malfunction cause.