In hyperbaric oxygen therapy, a patient breathes almost pure oxygen in a pressurized room or tube. By bringing more oxygen into the bloodstream, the treatment is thought to enhance healing for people with a number of conditions.
https://www.medicalnewstoday.com/articles/313155
![[diver]](http://cdn1.medicalnewstoday.com/content/images/articles/313/313155/diver.jpg)