Does the volume percentage of oxygen in the chamber change when the hyperbaric chamber is pressurized and working?

Changed. The volume percentage of oxygen in the hyperbaric oxygen chamber during pressurized work increases gradually with the treatment time, so it is said that the volume percentage of oxygen in the chamber during pressurized work has changed. The highest volume fraction of CO2 in the chamber was 0.20%±0.25%. Hyperbaric oxygen chamber is a special medical equipment for hyperbaric oxygen therapy, according to the pressurized medium is different, divided into air pressurized cabin and pure oxygen pressurized cabin two kinds.