Aromatherapy & Humidify:The Aromatherapy Scent Diffuser through the high-frequency vibration generated by ultrasonic vibration,melts water molecules into nano-scale cold mist of 0.1-5 microns,which is distributed in the air and produces a certain amount of natural negative oxygen ions to purify the air,while achieving the effect of aromatherapy. Fashion Design: Handmade ceramic electric diffusers are more natural and safer. The aroma diffuser, whether opened or closed, has a very modern and minimalist design, which is a perfect work of art. Safety protection: Our Ceramic diffuser comes with a protection sensor, when water level within the tank reaches a critical low, a signal tone will sound switching power supply system off for safety and better for energy saving Silent Operation & 7 Colors : Our Diffuser has Whisper silent operation 9 colors, efficient and energy-saving, Waterless Auto-Off Function, your diffuser is safe and simple to operate, timing Continuous/30sec-interval/1H/2H.