Following up on this very old post of mine so that it may help anyone finding this thread. The problem was drying out my nasal membranes too much, not an allergic reaction. The symptoms feel very similar to allergies, but that will happen if your nasal membranes get really dried out. I added a humid...

I just switched to the Airfit P10 2 weeks ago and almost immediately started have severe allergic reactions to it. It took me 2 weeks to figure it out, thought I had a bad cold at first, but finally confirmed it over the last two nights with help from my doctor. There is something in the plastic of ...