Well, they finally put me on oxygen. I guess it's not as bad as it could be, though. I only use it at night, so far. I've been using it for about a week now and can't tell any difference.



I have an oxygen concentrator, which is the grey piece of equipment in the picture. The oxygen tank is in case we have a power failure at night.

The air we breath is made up of approximately 21% oxygen, 78% nitrogen and about 1% of argon and other trace gases. A concentrator removes up to approximately 94% of the nitrogen and furnishes nearly pure oxygen.

Could be worse, I guess.