Interface device formable by additive manufacturing process

An interface device structured to be connected in fluid communication with a source of breathing gas and to provide a flow of breathing gas to the airways of a patient, the interface device comprising:

• a support;
• a deformable portion situated on the support;
• an interface portion situated on the deformable portion and being structured to be engaged with the patient at or near the airways;
• and
• the deformable portion comprising a plurality of deformable elements that form a lattice structure and that are connected with the support at a plurality of spaced apart points of connection on the support, the deformable portion further comprising a plurality of interstices situated between the plurality of deformable elements;
• wherein at least some of the deformable element of the plurality of deformable elements are mutually interconnected with one another;
• wherein the interface portion comprises a wall, the plurality of deformable elements being connected with the wall at a plurality of spaced apart additional points of connection on the wall;
• wherein the interface portion further comprises a barrier apparatus that includes a barrier that extends between the support and the wall and that is structured to resist the flow of breathing gas from flowing into contact with the plurality of deformable elements and that is further structured to resist the flow of breathing gas from flowing into the interstices;
• wherein the plurality of deformable elements and the plurality of interstices are encapsulated within the barrier.