This is a replacement CPAP cushion for the EasyFit full face CPAP mask from DeVilbiss. This replacement CPAP cushion features the unique scallop-shaped design from DeVilbiss that was crafted after studying 50,000 individuals from around the world. This exhaustive study of facial profiles from around the world helped DeVilbiss make this cushion as comfortable and well-fitting as possible. Choose between 2 different cushion materials: silicone or gel. It is recommended that you regularly replace the CPAP cushion roughly every 6 months to keep your CPAP treatments as effective as possible.