ResMed AirCurve 11 VAuto Bi-Level Bipap With HumidAir- Complete Bundle with Philips DreamWear Nasal CPAP Mask – FitPack Cushion for AirFit and Airtouch N20 you can not use tap

you can not use tap water in your CPAP

which means you can use the cushions interchangeably

reducing performance and potentially damaging the unit

This new Lena Full Face Mask by Lowenstein Medical has been developed especially for p high  Pressures and features a Dual Lipped Cushion to create a good mask seal

ResMed AirCurve 11 VAuto Bi-Level Bipap With HumidAir- Complete Bundle with Philips DreamWear Nasal CPAP Mask – FitPack Cushion for AirFit and Airtouch N20 you can not use tapThe ResMed AirCurve 11 VAuto is a premium Bi Level PAP device that provides separate inhalation and exhalation pressures for a natural, comfortable breathing pattern. Designed with an intelligent auto adjusting algorithm, the ResMed AirCurve 11 VAuto continuously adapts to your needs through the night, delivering personalised therapy in a compact, modern design. Integrated HumidAir humidification and an intuitive colour touchscreen make operation