Aroma Essential Oil Diffuser Ultrasonic Cool Mist DT4490 Humidifier provides moisture for Dry Cough, Sinus Irritation, Dry Skin. Whisper-quiet ultrasonic operation, monitor the shortage of water automatically and ensure the safety Enjoys the ultimate aromatherapy experience from this little sleek device using your favorite fragrance without any heating elements making this diffuser safe to use Keep essential oil 100% natural without burning or heating and automatic shut off safely. 4 Timer settings: 180 minutes, 120 minutes, 60 minutes and 30 minutes 7 Beautiful Color Lamp. With 7 soothing color LED light, you can set it on auto changing modes or steady on one color. Cozy lamp matches your mood, creating a relaxing, calm ambient. Power Adapter is included.