Children are especially victims in lower-middle income countries, every 2 seconds a child dies from your pneumonia.That's how bad the situation can be when you have pneumonia. AntiBiotics and oxygen are used to treat pneumonia.
In developing countries particularly the smaller hospitals it's rare to find a reliable source. It's sometimes very hard for the nurses and the doctors because sometimes they have to determine which child really needs this oxygen and which child can saved or be taken off oxygen and still survive.Oxygen cylinders hard to transport and expensive.
Hospital doesn't have money and even a timer for like a long process to buy today risk losing a lot of baby. In the world sheltered environment physics had no idea was the role that oxygen play. The fact that medicine for pneumonia and the challenge was how to get oxygen into the body is at these children.
If you can somehow, if you're able to remove the nitrogen from the air and remain with oxygen and have a little inert gases but we can't recycle machines call oxygen concentrators. Invented but probably of some really magic material because to the life person that looks like sand. when you pass it through it's sort of like a filter and an oxygen concentrator.
