Pursonic AD260 Bamboo and Ceramic Aroma Diffuser with Ambient Lighting, 2 Aromatherapy Essential Oils Ultrasonic transducer vibrates at a steady & high frequency that makes the molecules of water & the essential oils so tiny that it is easily absorbed by the body.3 timer settings 60, 120, or 180 minutes. Safety auto switch-off when water runs out Applicable areas: bedrooms, kitchen, living areas, office areas, pet areas, spa areas, relaxation rooms, Hotel rooms, gyms, Hospital & clinics 7 auto fading changing colors of LED lights that keeps you soothed and creates a relaxed romantic ambiance. Mini humidifier, aromatherapy & air freshener all in one