Many people may think that getting oxygen is easy since it’s in the air we breathe. Our ambient air (i.e., the natural air around us) comprises of only 20% oxygen; the rest is a mixture of nitrogen, argon, carbon dioxide and other gases. To get pure oxygen, oxygen plants must employ a specialized technique to separate the oxygen from the air, often by collecting air in its gaseous form and liquefying it at cold temperatures.
Once it’s collected, it must be inspected and packaged into different grades.