Features: [Colorful]This mist humidifier has a much multicolor luminous stone that creates a peaceful ambiance while delivering a soothing mist. [Cool Mist]Safely moisturizes the air for continuous operation so you can breathe easy and get more restful sleep. [Two Modes]Two Adjustable Spray Modes, Continuously spray can be used to purify air particulates; Interval spray can keep humidifying all night. [Large Capacity]500mL large water tank can safely moisturize the air for up to 10-20 hours operation so you can breathe easy and get more restful sleep. [Quiet]The mist humidifier only creates sound less than 36 dB which is very quiet, giving you a perfect sleep.