I've been using a C-pap for about 4 yrs now. I use the nasal pillows & what I've started doing is using baby wipes to wipe my nose & around my nasal area to cleanse the oils away. In the morning or before I use my wipeson my nose at night, I wipe the nasal pillows also. Keeps the oils from building up. I also wash all my hoses & nasal pillows in vinegar water once a week. This helps keep it clean & gets rid of bacteria from what they told me. Hope this helps.