Technical Features Oxygen Flow : 0.5 — 5 L/Min Delivery Method : Continuous Oxygen Purity : 93 ± 3% Outlet Pressure : 0.05 ± 0.005 Mpa Nelse Level : < 40 dB 2 Purity Alarm : Low Oxygen at 82% Additional Features : Metal Connector for Fire Proof OPTIONAL : Wifi – Remote Data Transport