A British medical doctor, Nahaniel Henshaw, proposed what would've been the main hyperbaric chamber for health care treatment of individuals in 1662. The metal container was to are already pressurised with air, which at the time wasn't still recognised to consist of oxygen, later learned by Carl Wilhelm Scheele all-around https://elliottdjquz.techionblog.com/36503122/5-essential-elements-for-hyperbaric-chamber-costa-mesa