Abstract: A ventilation system including a manifold fluidly connectable at an inlet thereof to a pressurized source of a driving gas, the manifold having a plurality of branches, an electronically controlled valve fluidly connected to each branch downstream of the inlet of the manifold, a ventilator fluidly connected to each of the branches downstream of the valves, each ventilator being operative to force a driving gas into lungs of a patient, and a controller in electrical communication with the valves, the controller operating the valves in accordance with an operating cycle including: a) causing a driving gas to flow through one of the ventilators while substantially preventing flow of the driving gas through the other ventilators, b) causing the driving gas to flow to another one of the ventilators which previously had no driving gas flowing therethrough, while substantially preventing flow of the driving gas through the other ventilators including the ventilator which previously had the driving gas flowing theret