1.5L Continuous Flow/1L-3L Pulse Flow Adjustable Oxygen Concentrator With 3 hours Battery Time (2 Batteries Included) Model MAF606

Product Description This is a 1.5L Continuous Flow/1L-3L/m Pulse Flow low noise machine with a 3 hour battery (Two 1.5-hour batteries included) ; that is superlight(weighs 4lbs) and works continuously 24 hours to provide above 35% oxygen purity.  Works to give continuous flow and pulse flow depending on your oxygen requirement.  Lightweight, comes with a carry bag and very easy to operate. Great for outdoor activities such as golfing, walking, doctor's visits etc. Extra battery available to use with it  and it gives a total battery power of 3 hours. Continuous Flow:  Gives a non-adjustable flow rate of 1.5L/minute continuously. Compared with pulse, it is continuously oxygen enrichment; the concentration indicated by this machine is ≥35% Pulse flow: Adjustable between 1L-3L /Minute. Approximately 18 pulses of oxygen enrichment output per minute. Oxygen enrichment ,concentration is about 28% -50%; the concentration referred to by this machine is ≥38%     Features 1.Pulse flow: Adj