Why is the Crown Swivel attached to the Halo headgear?
Respironics trials found that the short and long hose easily get wrapped up around the active sleeper if not anchored. Also, the anchored swivel helps to absorb the movement of the long hose as you move. Masks often lose their seal because the weight of the long hose tugs at the mask or cushion, which is prevented by the Crown Swivel design.