Personally, not that I know of. Are you using hypertonic saline in it? If so, that's what's clogging it. I'm using HTS in my eFlow, but I'm using one head only for it. I have two heads right now. One is for Pulmozyme and Colistin, and the other is for HTS only. It still works, it just takes a long time (15-20 minutes). The HTS, no matter how carefully you clean it, tends to screw up the heads anyhow. So if you are using it, see if you can get a new head (tell them it's clogged and not working), and use the old one only for the HTS, or the new one will get clogged as well.