The Philips Cushion & Flap for ComfortGel Blue Nasal CPAP Masks is a replacement set designed to maintain the performance and comfort of your mask. It includes a soft blue gel cushion and a flexible silicone flap that work together to create a secure seal, reducing air leaks and improving therapy effectiveness. The gel cushion adapts to your facial contours for a more personalized fit, while the silicone flap provides additional support and stability during sleep. Compatible with all versions of the ComfortGel Blue Nasal Mask, this replacement helps restore the mask's comfort and functionality. For best results, replace the cushion and flap regularly to ensure consistent performance. Note: This item includes the cushion and flap only; other mask components are not included.