![Amazon.com: Portable Oxygen Concentrator Machine for Home Use, Oxygen Generator, English Version, AC 110V/60 : Health & Household Amazon.com: Portable Oxygen Concentrator Machine for Home Use, Oxygen Generator, English Version, AC 110V/60 : Health & Household](https://m.media-amazon.com/images/I/31PZbfGLGXS._AC_UF1000,1000_QL80_.jpg)
Amazon.com: Portable Oxygen Concentrator Machine for Home Use, Oxygen Generator, English Version, AC 110V/60 : Health & Household
![5L Oxygen Concentrator (FDA-Cleared) Delivers Supplemental Oxygen 24/7. O2 Purity: 93%±3% (Flow Rate: 0.5-5 L/M). Home Use Medical-Grade. – Wellue 5L Oxygen Concentrator (FDA-Cleared) Delivers Supplemental Oxygen 24/7. O2 Purity: 93%±3% (Flow Rate: 0.5-5 L/M). Home Use Medical-Grade. – Wellue](http://getwellue.com/cdn/shop/files/2-B-NEW-1_1200x1200.jpg?v=1701763403)
5L Oxygen Concentrator (FDA-Cleared) Delivers Supplemental Oxygen 24/7. O2 Purity: 93%±3% (Flow Rate: 0.5-5 L/M). Home Use Medical-Grade. – Wellue
I saw an oxygen concentrator that gives out 1 litre of oxygen per minute at 90% purity but at 7 litres per minute the purity drops to 26%. What does it mean?
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