A micro hyperbaric oxygen chamber is a device that conducts oxygen therapy in a mild hyperbaric environment. Compared with traditional hyperbaric oxygen chambers, it features a more moderate pressure setting, usually maintained at a range of 1.1 to 1.3 atmospheres. This moderate pressure condition is easily adaptable for most people, eliminating the need for the complex and time-consuming pressure equalization training required for traditional hyperbaric oxygen chambers, thus greatly lowering the threshold for use.