CLOSED CIRCUIT REBREATHERS

As scuba aficionados, many of us do not realise that rebreather technology actually predates the invention of the “aqualung” by many decades. In 1878, Henry Fleuss created a device that recirculated pure oxygen. The “Fleuss rebreather” would be put to the test a couple of years later when an English diver walked 330 metres of a tunnel that had become flooded beneath the Severn River. The device proved its worth, but for widespread underwater use, it