【Colorful Night Light Mode】This air humidifier has a VIVID color cycling light setting that creates a peaceful environment while providing a relaxing mist. It uses nano-spray technology to ensure a fine spray mist and provides maximum relaxation. The night light could improve your sleep quality. 【Humidifier with Large Spray】Although this humidifier has a 1000ml water tank, it has a large spray volume which can convert 50-60ml of water per hour in micro-mist. This rapid humidification can quickly improve your air environment in the winter, especially when using heating. Before first use, please take out the cotton swab and soak it completely. 【2 Modes & 8/10h Auto Shut Off】The humidifier has 2 spray modes (continuous and intermittent), which can set by briefly pressing the power switch. In continuous/intermittent mode, it will shut off automatically after 8 hours or 10 hours. 【Powered by USB / Auto shut-off without water】: Powered by USB adapter (not powered by batteries, USB cable is