The first reliable oxygen rebreather was developed in 1878 by Henry Fleuss, an English seaman. Year at which he obtained a patent for a closed circuit system that used a tank of compress oxygen and a canister with ropes soaked in caustic potash. This absorbed the carbon dioxide from the exhaled gas to be recycled back to the diver. He tested his device in 1879 staying 1 hour underwater in a water tank.
This absorbed the carbon dioxide from the exhaled gas to be recycled back to the diver. He tested his device in 1879 staying 1 hour underwater in a water tank.