ResMed AirFit F40 Full Face CPAP Mask Replacement Cushion fisher-paykel Then you should replace both

Then you should replace both particle filters about every 6 months (sometimes sooner depending on your environment) to keep them working as expected

Why should kids have all the fun

Portable Convenience — Compact design for easier everyday mobility

to complement your device

ResMed AirFit F40 Full Face CPAP Mask Replacement Cushion fisher-paykel Then you should replace bothThe ResMed AirFit F40 Full Face CPAP Mask Replacement Cushion is the original replacement for the AirFit F40 one of ResMed's smallest full face masks. Available in Small Wide, Medium, and Large. Features & Benefits Original ResMed Part Guaranteed fit for the AirFit F40. Minimal Under Eye Profile Less facial coverage than traditional full face masks. Available in Small Wide, Medium, and Large Precise sizing for a secure seal.