In terms of work scope, the operation steps of hyperbaric oxygen are as follows: 1, the patient enters the oxygen chamber, after a reasonable body check, no special circumstances, with appropriate chaperones, close the oxygen chamber; 2, pressurization, so that the air pressure reaches the set pressure; 3, the patient is treated in the hyperbaric oxygen chamber by inhaling oxygen, the general time is about 2 hours; 4, after the treatment is over, slowly lower the pressure, open the chamber and complete the treatment. During the treatment, there are intercom devices and video monitoring. If the patient is too cold, too hot or uncomfortable, he or she can communicate with the doctor in time, and if necessary, the chamber will be opened and treated urgently. Hyperbaric oxygen therapy is safer, but be aware that you cannot bring cell phones and flammable and explosive materials during treatment, which are very dangerous if they catch fire.