A British doctor, Nahaniel Henshaw, proposed what would've been the first hyperbaric chamber for health-related treatment of human beings in 1662. The metal container was to have been pressurised with air, which at the time was not but identified to include oxygen, later on identified by Carl Wilhelm Scheele all https://chancevnajb.widblog.com/91279713/hyperbaric-chamber-cost-reddit-secrets