Valve

Abstract: A valve for use with a respiratory system arranged to convey a breathable gas to a patient, wherein the valve allows gas from within the respiratory system to exit, comprising: a valve body including an inlet and an outlet, said inlet configured to be in fluid communication with the respiratory system; an actuator disposed within the valve body, in a flow path between the inlet and the outlet, wherein the actuator is biased towards the inlet and movement of the actuator away from the inlet being at least partially dependent on a pressure of the gas at the inlet, said movement adjusting the flow path between the inlet and the outlet, to regulate the pressure of the gas in the respiratory system within a predetermined range.

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