Designed for the F40 full face mask, this cushion supports optimal therapy. Our F40 Replacement Cushion has and snug fit to prevent leaks while staying comfortable. Only compatible with for F40 and to be used with other original parts of the F40 mask. Made with soft silicone, our cushions are designed for extended use and are recommended to be replaced monthly. Soak all mask components for 5 to 10 minutes, wash for 1 minute, and air dry. The F40 Cushion Replacement is specifically crafted to enhance the effectiveness of therapy. Its snug fit ensures comfort and minimizes leaks, making it an essential component for users of the F40 mask. Regular maintenance is easy, and the silicone material guarantees long-lasting use. Color: As Shown Material: Silicone Package Contents: 1*Replacement Cushion Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.