... without heating and burning 2.original design 3.high efficient mini ultrasonic diffuser Ipple is the apple of soul. The ... water tank inside for more than 7 hours ushigh efficient mini ultrasonic diffuser APPLICABLE AREA:Beauty salon, SPA, Yoga, Bedroom, ... Living room, Conference room, Office, Reception center, Corridor, Pet room, Toilet, baby’s room, Hotel, Hospital or any other private / public ...