Abstract: A breathing mask comprising a mask body, a mask bead, a strap holder and a filter device. Mask bead, strap holder and filter device are connected to the mask body and/or are part of the mask body. The breathing mask encloses the nose and mouth of the user, the mask bead partially delimiting a receiving opening for the nose and mouth. The filter device comprises at least one filter receptacle and at least one filter element. The mask bead has a bearing region configured as a sealing lip and is designed such that the breathing mask bears with the sealing lip on the facial skin around nose and mouth and provides a substantially leak-tight seal to respiratory gas. The filter device is at least in part exchangeable and respiratory gas can at least partially flow through it.

Abstract: A patient interface with a sealing device, the sealing device comprising a support membrane and a sealing membrane. The sealing membrane is designed at least in part to bear on the skin of a patient and the support membrane extends at least in part adjacent to the sealing membrane. The distance between the support membrane and the sealing membrane is at least in part such that an interspace is formed.