A British medical doctor, Nahaniel Henshaw, proposed what would have been the very first hyperbaric chamber for clinical treatment of people in 1662. The steel container was to are pressurised with air, which at some time was not but acknowledged to include oxygen, later identified by Carl Wilhelm Scheele around https://oxygenchambers95172.full-design.com/oxygen-therapy-cost-uk-fundamentals-explained-78774676