... concentrated, clean, sterile medical oxygen from the air. The purity of oxygen can reach to 98%. Using 2 BAR pressure to ... .Brain hypoxia: dizziness, headache, tinnitus, nausea, palpitation, shortness of breath, confusion, until death.Skin hypoxia: lower skin self-renewal ... remove facial blemish, deep cleaning, and improve the flexibility of skin.♦Remove scar caused by laser treatment, burn, surgical ...