Firstsing 3L Portable Oxygen Concentrator Generator medical o2 inhalation

Oxygen Flow: 0.5~3L/min
Oxygen Concentration: 93%±3%
Power Supply: ~220V±22V; 50Hz±1Hz
Input Power: 330VA
Output Pressure: 30~70kPa
French imported molecule sieve, long life and more efficiency.
Adopts american PSA technology, use Physical method to separate pure oxygen from air.
Brand-new design, Small size and nice looking,light weight, easy to move.
Advanced oil-free compressor, save 30% power energy.
Optional nebuylizer and oxygen purity alarm function.
Power off alarm, abnormal voltage alarm.