Description: The essential oil diffuser adapts nano-spray technology to ensure fine spray mist and no water droplet will be left in your desk. It not only helps adjust dry air in the air-conditioned room but also moisturizes your skin, relieves nasal congestion, and purifies the air, keep you healthy all the time. Features: [Cool Mist]There are 2 options of mist for you to choose from: strong and standard mist. Safely moisturizes the air for continuous operation so you can breathe easy and get more restful sleep. [Colorful Light]This personal humidifier with 7 color-changing LED lights can create a warm and romantic environment. [Auto-Shut Off]There is a built-in water level sensor inside that will automatically turn off the power when the water is lower than the safe water level. [Aroma SPA]Add several drops of your favorite essential oils(not included) into the water, the fragrance of essential oils from the mist can help with stress, anxiety, relaxation, sleep, headaches, and more.