Fisher & Paykel Brevida Air-Pillow Seal (Medium-Large)- Silicone Nasal Pillow Cushion for CPAP Mask - 1 Count - Replacement Part SW -400BRE114

This replacement Air-Pillow Seal (Nasal Pillow) is designed for use with all F&P CPAP and BiPAP Masks. innovative Air-Pillow inflates to form a gentle, effective seal on the nostrils; features side supports on the outside of the nose for added comfort and stability. Air-Pillow Nasal Pillow sizes are available -- Extra-Small-Small and Medium-Large -- to fit a wide range of users

This replacement Air-Pillow Seal Pillow is designed for use with all F&P Bre-vida. Bre-vida's innovative Air-Pillow inflates to form a gentle, effective seal on the nostrils; and features side supports on the outside of the nose for added comfort and stability. Two Bre-vida Air-Pillow Pillow sizes are available Extra-Small-Small and Medium-Large -- to fit a wide range of users. All Bre-vida use a single frame size so any Air-Pillow size can be used on any frame. If you would like to change the size of your you can just purchase a different pillow size and fit it to your existing frame To determine the size of your seal. check the Visi-Blue area on the front of the frame for the embossed letters XS-S or M-L.