Oxygen Concentrator - 5 liters MiniFlow rate 1-5 LPMHigh / Low voltage Alarm SensorsPSA (Pressure Swing Adsorption) TechnologyInbuilt Nebulizer and Timer (10 MIN to 5 HOURS)Folding 3.5” Large LCD displayAlarms for Low Oxygen purity, Low pressure and for Power Fluctuation and defective information displayed on the screenIntelligent self-diagnosis system : Malfunction information display on LCDHEPA filter and Bacteria filter from Italy. Five-stage filters keeps away most of impurity, bacteria and ..