Ultrasonic Air Freshener High frequency ultrasonic diffuse liquid into small particles,Creating a ... liquid into small particles,Creating a relaxing atmophere in any room,Suitable for use with essence,Approval PSE,CE,GS,UL ... element or chemicals,3.Creating a relaxing atmophere in any room,4.Fill the water tank and add a few drops ... :4392pcs/20'gp, 8640pcs/40'gp, 10880pcs/40'hq Ultrasonic Air Freshener