Low Noise and Better Sleep: Adopting noise reduction technology, the ultrasonic diffuser operates quietly without the sound of dripping water, creating a relaxing and soothing environment for undisturbed relaxation, study, work, and sleep in rooms up to 480 sq ft, making it suitable for large spaces. Enjoy up to 20 hours of fragrance. Three timer settings are available: 1/3/6 hours. Superior Safety: You can leave this aromatherapy diffuser on overnight without worrying about overheating thanks to the automatic shut-off feature that protects you and your family from water. Stylish Gift: With its minimalist design and modern look, the aromatherapy diffuser makes a wonderful and thoughtful gift for friends and family. The essential oil diffuser features an ultra-modern marble grain design that complements any décor style. Certain essential oils can produce a healing effect that soothes your sinuses and can help you breathe better when using an air conditioner.You can also add your favorite essential oil to the water, as it's also the perfect fragrance diffuser!