Barry with his Healing Dives 28″ Chamber Photo Gallery | Barry has multiple sclerosis. He had been going to a clinic for mild HBOT, and he was very pleased with the results. However, he wanted the convenience of a chamber in his home. Barry uses his chamber daily at 1.3 ATA, in conjunction with herbal treatments. He hopes that by using these therapies, he will be able to manage his symptoms without drugs.