Ultrasonic Technology: Essential oil diffuser creates a fine mist using ultrasonic misting technology, which can be enriched with aromas by adding essential oils. ideal to soothe your mood, relieve stress, help you sleep. Safe and Environmentally Friendly Guarantee: adopts BPA-free material which will not release any harmful odors, provide you with a pleasant life and healthy.Automatic shut-off without water Guarantee your safety. Durable All Day: The capacity of 550 ml of water, provides up to 10-15 hours of continuous operation without the effort of refilling. High mist and low mist option for different situations. Increase humidity in dry air, purify and cover unpleasant odors from pets or smoke for a restful and body-friendly home or workplace. Intelligent & Practical: 7 soothing LED colors for your choice. You can easily press the button to choose a timer setting as you wish (1 hour / 3 hours / 6 hours/steady). Perfect for Gifts: Featuring a wooden pattern unique, Exquisite packaging box, give a measuring cup, are perfect for gifts, perfect for bedroom, office, living room, bathroom, yoga, SPA, conference room, baby room, etc. Can be used as a diffuser/air purifier/night light.