Replacement nasal pillows for the ResMed AirFit P10 Nasal CPAP Mask and the AirFit P10 Nasal Pillow CPAP Mask. Replacing CPAP Nasal Pillows infrequently can cause buildups that cause infections. So, replace your CPAP Nasal Pillows for the ResMed AirFit P10 at least every 30 days to protect your health