Oxygen Concentrator With atomizer&timer

Oxygen flow(L/min):0～4
Oxygen concentration(%):≥90%
Oxygen delivery pressure(Mpa):0.03～0.07
Noise dB(A):≤52 
Atomizing pellet(m1/min):≥0.5
Size(mm):640(Height)×410(width)×410(depth)
Net weight(kg):32
Power: AC 220±10‰ 50±1Hz 
Power consumption:≤500W 
Electric classification : Class II Grade B
Power failure alarm: Yes
High & low pressure alarm: No