Usage patterns
酸素を吸うto breathe in oxygen
I took a deep breath and breathed in oxygen.
酸素が不足するfor oxygen to be insufficient/lacking
Oxygen is scarce at high altitudes.
酸素マスクをつけるto put on an oxygen mask
The patient was wearing an oxygen mask.
酸素を供給するto supply oxygen
This device supplies oxygen to the body.