This is known as hyperbaric oxygen therapy.
Henshaw purportedly built the first hyperbaric chamber two years previously.
But Dr. Cunningham was the true pioneer of this snake oil therapy.
He concluded that the improvement was due to the increase in oxygen at a lower altitude.
Therefore, by increasing the oxygen, the bacteria will fail to grow and eventually die off.
The site was chosen because of its quietness and beauty of the surroundings.
The entire system was regulated and controlled by thermostats that automatically adjusted the properties of air within the tanks.
The facility opened in 1928.
The new owners abandoned the oxygen therapy and converted it into a general hospital.
This also closed quickly due to financial problems.
The site remained unused until purchased by the Roman Catholic Diocese of Cleveland.
In 1942, the hospital building was demolished and the steel ball was dismantled and scrapped for the war.
Dr. Cunningham died in 1937.
His methods found no evidence of curing any of the diseases he targeted.
