Philips DreamWisp Headgear Replacement Size:Standard RollFit Seal is where the

RollFit Seal is where the seal rolls back and forth around your nose eliminating pressure from the bridge to give you a comfortable seal

and efficiency for your respiratory therapy equipment

Convenient measuring line on the tub

flexible connection to your main breathing tube

Philips DreamWisp Headgear Replacement Size:Standard RollFit Seal is where theThe newly designed DreamWisp is a combination of the Philips Respironics DreamWear top of the head tube design and Wisp minimal contact nasal cushion. This new mask design concept makes the DreamWisp the all around most comfortable, lightweight nasal CPAP mask that users are raving about. The DreamWisp is designed to direct airflow through the frame and the tubing connection at the top of the head that allows users to sleep in any position they want