The hyperbaric chamber is a specialized equipment for hyperbaric oxygen therapy, which is mostly made of steel. Due to the different scope of application. The pressurized cabin has a variety of different forms, but basically the same. Mainly: ① single cabin: single cabin volume is small, only accommodate a patient, cabin directly filled with high-pressure oxygen, patients in the cabin to absorb pure oxygen. Therefore, it can also be called pure oxygen cabin. Oxygen chamber is characterized by: low cost, easy transportation, generally used for treatment, not conducive to the rescue of critically ill patients. ② multi-person cabin: the volume of the cabin is large, the entire cabin for the 2 to 3 compartments together, respectively, known as the operating room, treatment room and transition room. Pressurized with compressed air, the patient in the cabin wearing a mask to inhale oxygen. Can be in the cabin for surgery, treatment, rescue and other medical work. This large-scale cabin is conducive to a number of patients at the same time for treatment, allowing medical personnel to enter the cabin care patients, is conducive to the rescue and treatment of dying patients, but the cost is more expensive. ③ infant oxygen chamber: for newborns and infants, can be placed in the ward use, very convenient.