Connector for multiple sized connections

A patient interface assembly comprising:

• a patient interface;
• a breathing tube;
• and
• a connector comprising:
• a proximal end and a distal end comprising an inner wall and an outer wall extending from a common base,
• wherein the inner wall and the outer wall define an inner tube and an outer tube, the inner tube nested within the outer tube,
• wherein the outer wall is configured as a first connection mechanism, wherein the first connection mechanism comprises a male connector or a female connector, and
• wherein the inner wall is configured as a second connection mechanism, wherein the second connection mechanism comprises a male connector.