Respiratory system particularly suited for aircrew use

摘要

A respiratory system that is particularly suited to provide uncontaminatedentilation and oxygen needs of an aircrew during the ground and flight operations is disclosed. The respiratory system has provisions to provide for a continuous flow of air or oxygen during the failure mode conditions of the ventilator and oxygen generating systems supplying the respiratory system so that the aircrew is always provided with at least a flow of uncontaminated breathing fluid under all such failure mode conditions.