Supplemental Oxygen

If anybody in need, there is a new product on the market called "Boost" which is a can of 95% Oxygen. In the U.S. it comes in different "flavors" but I don't know about Amazon.com.mx. It is used by elite athletes as an energy boost, but unless your heart is healthy enough to process it, the rest of us sluggish schlubs would not get the boost. Still good for muscle cramps, breathing emergencies, etc. Not a substitute for Dr. managed oxygen therapy.

https://www.boostoxygen.com/faqs/