A British doctor, Nahaniel Henshaw, proposed what would've been the primary hyperbaric chamber for health-related treatment of human beings in 1662. The metal container was to have already been pressurised with air, which at time was not nonetheless recognised to comprise oxygen, afterwards uncovered by Carl Wilhelm Scheele around 1770 https://oxygenchambers95062.howeweb.com/37174957/how-much-you-need-to-expect-you-ll-pay-for-a-good-oxygen-chambers-therapy