Abstract: An accessory device for safety breathing equipment which comprises a generally triangular bag of impervious flexible material tapering downwardly from a wide closed top at which a handle is provided, the bag having a zip-type fastener by which the filter unit of a respirator can be loosely accommodated and supported in a voluminous upper region of the bag equipped with an inlet valve, with a hose which couples to the face mask projecting from the narrow bottom of the bag which tightly surrounds said hose when the bag is closed around the filter unit by means of the zip-type fastener.