1 oxygen jet facial machines 2.98% pure oxygen 3 wrinkle and pigment remove 4 tighten,writen,tender skin ... instantly and continuously separate the high-concentrated, clean, sterile medical oxygen from the air. The purity of oxygen can reach to 98%. Using ... eczema, acne-prone skin, sunlight disease etc.4. Oxygen jet therapy: mainly through the oxygen injection tools, and to impose appropriate limits of ...