... and nitrogen in air 2.get pure oxygen for medical use,home care,beauty Features:Apply zeolite ... substance in air, so as to get pure oxygen for medical use, home care, and beauty.Technical Data: ... 4.5kPa (6.52psi±0.65psi) (7F-5)Maximum Outlet Pressure: 45kPa±4.5kPa (6.52psi±0.65psi) (7F-8)Maximum ... 8″)12. Minimum Operating Time: 30minutesPictuture: 7F-5/ 7F-8/7F-10 Oxygen Concentrator for medical use