Abstract: The present invention relates to equipment for producing a hypoxia gas mixture and for use during hypoxia training at regular intervals. The present invention may be used in the field of practical medicine during a therapy involving gas mixtures with a low oxygen content. This invention essentially relates to an apparatus for producing a gas mixture for hypoxia training at regular intervals, wherein said apparatus comprises the following elements serially connected: a compressor; a gas-distribution member made of hollow polymeric fibers of poly-4-methylpentens-1; a duct with a flow-meter; a moisturising unit; a patient mask with a breathing valve; a system for automatically controlling the operation mode parameters, wherein said system comprises a patient-condition monitoring device with an oxygen indicator and a spirometer; and a drying unit mounted before the gas-distribution member.