... shift, adopt advanced physical theory (PSA) to separate oxygen and nitrogen in air, at the same time ... substance in air, so as to get pure oxygen for medical use, home care, and beauty.Technical ... 7F-8) ; 2~10L/min (7F-10) 2. Oxygen Concentration: 95.5%~87%3. Maximum Outlet Pressure: 45kPa ... 60dB (A)7. Maximum nebulizing rate (apply in the oxygen concentrators having the function of nebulizing): ≥0.2 mL ...