1-5 L/min Adjustable Portable Oxygen Concentrator

1-5 L/min Adjustable Portable Oxygen Concentrator Breathe Easy Anywhere with Our Safe and Reliable Portable Oxygen Concentrator Machine Unlimited Oxygen Supply No Prescription Needed No Oxygen Cylinder Needed Long Lasting Battery Life Adjustable Flow 1L/min to 5L/min  This Oxygen Concentrator Machine uses safe and reliable oxygen production technology, Intelligent and simple machine operation allows the body to quickly obtain more suitable oxygen. The compact body and the accompanying carrying case make it easy for you to go out without feeling the constraints of the machine when you go out. Include a rechargeable battery as well. It can always be with you, letting you come near to nature and breathe clean air. 3.5 - Hours Battery 5 - 1-5 Litre Flow per minute BEST FEATURES It’s lightweight and comes with a versatile bag for easy carrying. The large, removable battery suppo