JOYCEone nasal mask by Weinmann is one size fits all. It all happens automatically as the optimized mask cushion finds the ideal position on its own, regardless of the shape and size of your nose. Likewise, the springs on the forehead support automatically maintain the right distance to the forehead for effective and comfortable therapy. JOYCEone also boasts easy handling with color-coded headgear and clips that simplify mask assembly. The JOYCEone is also available as a full face mask.