The ResMed Disposable S9, AirSense/AirCurve 10 Standard Filter is used with all S9 and AirSense/AirCurve 10 CPAP and BiPAP machines to improve air quality. This filter is not washable and should be replaced every 2 to 4 weeks, depending on dust accumulation and the air quality in your home. If you have pets, we recommend replacing the filter more frequently.
