Ultrasonic Aromatherapy Essential Oil Diffuser by Eineo. 100ml Portable Cool Mist Humidifier with Auto Shut-Off. Quiet with 7 Color Changing LED Lights. Diffuser promotes Well-Being as it refreshes, sterilizes and deodorizes the air. Create your very own aromatherapy relaxation therapy right at home. Uses no-heat ultrasonic super quiet waves to diffuse a steady mist of your desired essential oils with coverage that lasts up to 4 hours. Can also be used as an air purifier and humidifier (without adding oil). Easy to use, with 2 mist timer settings (steady or intermittent mist) and a built-in auto shut off safety feature when the water runs out. Therapeutic color-changing LED lights to create a calming ambiance and soft night glow for mood enhancement and relaxation. Relax after your busy day with soothing aromatherapy. Works great as a night light and can be used safely in childrens rooms, baby nursery and the rest of your home.