Erin 500ml Aromatherapy Essential Oil Diffuser Ultrasonic Aroma Cool Mist Humidifier Quiet with Automatic Shut off Function and 7 Color Light for Office Home Yoga Spa,Touch Control and Timer UNIQUE & FASHION DESIGN : The ultrasonic aroma humidifier using high quality ultrasonic atomizing sheet, helps Purify and Humidify the Air , improves the air quality ,Provides moisture for Dry Cough, Sinus Irritation, Dry Skin. it with touch control , classical and fashionable shape for the high-grade people who love life. LARGE CAPACITY AND GREAT MIST OUTPUT. This aroma humidifier can hold up to 500ml of water and produce up to 30ml of moisture per hour. It can run up to 10 hours of continuous output. Automatic power off when water used up, which ensures safety. 7 COLORS LAMP :You can choose among 7 colors between two mode: steady on/changing color. each of which is adjustable between Bright and Dim modes, Great night light for young children scared of the dark at bedtime. AROMATHERAPY  Add the water and 2 to 3 drops of Essential Oil simply,And just enjoy your favorite aromatherapy , that helps revitalize your spirit and nurture relaxation. WHISPER-QUIET Ultrasonic Operation - Our design is crafted to be extremely quiet, no noise, making your overall experience even more pleasant! There is absolutely no heat, no vibration, buzzing or any other annoying operational noises. It is perfect to use in any room, anytime, day or night.