Its function combines aromatherapy, anion-therapy, color-therapy, humidifying, air purifier and night lamp together Ultrasonic Aroma Diffuser, ... second, releasing plenty of oxygen, anions. Add pure essential oil, it will completely nebulization. Built-in colorful lights, ... techlonogy, no heating, safety and high efficiency.5. Aromatherapy & Color-therapy6. Whitening and Moisturizing. 7. Release large ...