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ResMed AirFit™ F40 Full Face Cushion

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AirFit F40 Cushion

AirFit F40 has a soft silicone cushion that adapts to the face and seals securely. These replacement AdaptiSeal Full Face Cushions are designed for use with all AirFit F40 CPAP & BiLevel Masks.

ResMed's AirFit F40 Full Face AdaptiSeal Cushions are made of ultra soft silicone and feature an innovative, minimal contact design that sits below the nose- covering just the mouth and the nostrils- to reduce contact with the face and eliminate problematic touch-points like the nasal bridge and upper cheeks.

SIZES: AdaptiSeal Cushions come in three sizes -- Small Wide, Medium & Large. All AirFit F40 Masks use a single frame size so any AdaptiSeal Full Face cushion can be used with any F40 series mask frame. If you would like to change the size of your mask, you can just purchase a different cushion size and attach it to your existing F40 mask frame.

Need to find the right size?  Use this Sizing Guide

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  • 5
    So helpful!

    Posted by Stephanie Summers on Sep 10th 2024

    I was nervous to start CPAP therapy because of my claustrophobia and my stuffy nose from my allergies. This mask works wonderfully for either mouth or nose breathing, and I don't feel closed in because it sits right under my nose. Thank goodness it works for me, I was so tired!