Contec Oxygen Concentrator 5L With Nebulizer Function

1)With working indicator
2)Built-in filters to pure the gas
3)Oxygen concentration status indicator
4)Function of accumulating time
5)Function of timing shutdown
6)Alarm for power failure
7)Alarm for high/low pressure protection
8)Alarm for low flowrate
9)Alarm for high temperature
10)Measure SpO2 and pulse rate