The F&P Simplus incorporates three key components, the RollFit™ Seal, ErgoForm™ Headgear and Easy Frame, all designed to work in harmony. In combination, these components offer the comfort, seal and easy use that Fisher & Paykel Healthcare masks are known for. Easy frame: This low-profile frame is stable, durable, small and ensures a clear line of sight. This is a one-frame-fits-all-seal-sizes and has an 'Easy-Clip' Frame attachment for effortless assembly after cleaning. The one piece seal ‘rolls’ back and forth on the bridge of the nose. This automatic adjustment minimizes pressure on the bridge of the nose. ErgoForm™ Headgear: This breathable headgear self-locates high on the rear of the head allowing for maximum head movement (side-to-side, up and down) without mask dislodgement. Advanced Air Diffuser: The RollFit Seal incorporates the Advanced Air Diffuser which is designed for minimal noise and draft.