A Both cabinet respirator being used to treat a patient at the 110th Australian Military Hospital in 1943 The<unk> , also known as the Both Portable Cabinet Respirator, was a negative pressure ventilator (more commonly known as an "iron lung") invented by Edward Both in 1937. Made from plywood, the respirator was an affordable alternative to the more expensive designs that had been used prior to its development, and accordingly came into common usage in Australia. More widespread use emerged during the 1940s and 1950s, when the<unk>  was offered free of charge to Commonwealth hospitals by William Morris.
Both respirator
Liquid ventilator
Elastomeric respirator
Ventilator
Respirator
Artificial lung
Membrane oxygenator
Open-source ventilator