... /min)*High oxygen outlet pressure above 7 psig (50kPa)*Low sound level below 42dBA (standard type:3, 4, 5L/min)*Low adsorption ... , 8, 10Oxygen Concentration (%) ≥90Outlet Pressure (MPa) 0.05-0.08Sound Level (dBA) standard type:3, 4, 5L/min,≤42customized type:6L ...