A conduit (14A) for conducting a flow of breathing gas from a pressure generating device (4) to a cushion (10) of a patient interface device (8) includes a housing (22) that defines a passage (24) therethrough. The conduit further includes a first magnetic element (30A) disposed on a first side of the passage and a second magnetic element (32A) disposed on a second side of the passage opposite the first side. The first and second magnetic elements are positioned such that the magnetic fields produced by each magnetic element interact in a manner such that the first magnetic element and the second magnetic element are repelled away from each other in a manner which resists collapse of the passage.
