FUNCTION:the humidifier purifier provide fresh and clean air, moisturize the dry skin,It can keep your living space clean and properly moisturized, LOW NOISE: Air Humidifiers is adopted spray technology.Low consumption and low noise make it perfect for sleeping or reading time. CLEAN: No fixed water tank, no filter, so easy to clean. PORTABLE: The personal mini air humidifier is very convenient for using, you can use it with any bottles freely at any places. DESIGN: donuts humidifier, simple design looks cute and stylish, suitable for travel / office / home