An emergency oxygen supply device for an aircraft comprises an oxygen pressure tank, and at least one oxygen mask which is conductively connected thereto. At least two electrically actuatable and activatable shut-off valves which are arranged parallel to one another are arranged in the conduit from the oxygen pressure tank to the at least one oxygen mask. Of these shut-off valves, at least one shut-off valve has an NO-function and at least one shut-off valve an NC-function.
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