Compatibility:
The hypoallergenic filters are compatible with all ResMed AirSense10, AirCurve10 and S9 series CPAP/APAPAP/BiPAP devices.
Dimensions: 5.4cm x 3.6cm (54mm x 36mm)
!!! We recommend that the hypoallergenic filters be replaced when they show visible dirt, usually every two (2) months.
The package contains a single filter.