A hyperbaric oxygen chamber for multiple users simultaneously, first and foremost, requires a large volume and a pressure of at least 1.3ATA, which places high demands on materials and structural design. The spherical oxygen chamber that we have designed can withstand pressures ranging from 1.3 to 1.5ATA, accommodating up to four people at the same time. If you need to accompany your child or parents during HBOT, or if you wish to undergo HBOT with friends, this hyperbaric oxygen chamber is the best choice.