... operation&maintenance. 3.Lighting ON/OFF Air Humidifier with Purifier, LED Color Change Aroma Diffuser This ultrasonic aromatherapy diffuser with 1.7 million ... : a mini humidifier with aroma fuctionColor: Arm with 7 colors LED lights, like a rainbowCertification: CB, CE, PSE,EMC, GS, RoHS ... *29.5cm G.W.: 8.8kg Air Humidifier with Purifier, LED Color Change Aroma Diffuser