... 700ml square shape Humidification, purification, aromatherapy, decoration 12 led light Ultrasonic Aroma Diffuser Humidifier 700ml *square shape*main material:PP *product size: ... resistant,acid and alkali resistant,suit all types of essential aroma oil,for you to create a fresh,comfortable space *Functions ... safe protection device;auto power off when no water Ultrasonic Aroma Diffuser Humidifier 700ML