The 2 machines on the left were used to charge the tanks. Ironically, it was the first machine she used, it went up to 5L of oxygen. As she got worse, she required a more powerful machine that could produce 10 liters. That machine was replaced by the small black one in the right corner. It was loud compared to the original 10L machine. I feel better knowing this equipment will go to help someone else in need.
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