Product Description The specification of the oxygen concentrator Oxygen flow(L/min): 0~4 Oxygen concentration(%): more than 90% Outlet pressure(Mpa): 0.03~0.07 Sound level dB(A): ≤50 Size(mm): 600(Height)*380(width)*310(depth) Net weight(kg): 25 Power: AC220+-10%, 50/60+-1Hz; AC110+-10%, 50/60+-1Hz Power consumption: ≤400W Electric classification: Class II Grade B Alarm: Power failure alarm 可有其他选配功能:计时,雾化,氧显等。根据成本增加一定的费用。