portable oxygen concentrator with CE 1L min-5L min 110V 220V

1L/min:90% purity,2L/min: 70% purity,3L/min: 50% purity,4L/min: 40% purity,5L/min:30% purity,
With this price,you will get the whole unit for the following items:
1x Main oxygen concentrator
1x Infrared remote control
1x Operation manual
1x Oxygen headset
1x Nasal oxygen cannula
1x Oxygen tube and water collector
1x Injector
2x Seal ring and 1x Rubber plug
1x First level filtering
1x Second level filtering
1x Power cord