oxygen facial machine 1.98% pure oxygen 2.wrinkle and pigment remove 3.whiten, peeling,firming skin 4.CE, OEM microdermabrasion machine Working principle ... 98%. Using 2 BAR pressure to inject the pure oxygen and active nutritional essence to the inner skin, ... .The accessories and their functions1. Oxygen obsorb therapy: wear oxygen mask, with 98% pure oxygen with aromatherapy by inhalation, can ...