This gray FlexiFoam Cushion is designed for use with all FlexiFit 407 (HC407) Nsal and When in use the foam cushion is paired with a silicone seal (sold separately) to ensure a comfortable, leak free fit.
FlexiFit 407's gray cushion uses FlexiFit foam air technology to conform to most noses and facial features, while the frosted outer silicone seal (sold separately) provides added leak protection.
NOTE: In late 2022 F&P Healthcare updated the FlexiFit 407 cushion design with a more highly contoured edge to better fit a wider range of patient faces.