I am posting and following to keep this issue fresh and alive and provide additional vindication to others who have had this experience.
I am a long time a ResMed Airsense 10 user. I have had no issues with the Airsense 10. Have had 2 of them and had great trust in Resmed reputation.
I purchased an AirMini about 6 weeks ago to make travel and camping more convenient. I have used the AirMini a total of 4 times spread out over the 6 weeks. I use the nasal pillows.
First time I used the Airmini, it had a weird smell to it from the HumidX. I woke up with a tickle up in my nostril and the tip of my nose feeling very cold. I started sneezing non stop for about 30-40 minutes. At the same time my nose started running non stop. These symptoms lasted for for 3-4 days and were not effected by OTC cold medicine. It was pretty miserable. I was not sure if it was the flu or from the Airmini.
The second time I used the Airmini was on a trip. The same progression and symptoms occurred and also lasted 3-4 days. Nothing seemed to help or control the symptoms.
The third time I used the Airmini about a month ago I had a no symptoms.
I was still wary of using the Airmini on important trips. I found on this forum and others that people were having the same experience with the AirMini and that it was possibly caused by humidity issues.
Last night I was in good health and had not been around groups of people for awhile, so I decided to run a test and used the Airmini instead of my Airsense 10. I frequently set my nose, added a few drops of distilled water to the HumidX filter. The first half of the night went ok. I monitored for any symptoms and intended to discontinue at the first sign of any issues.
At 3:30 am this morning it hit. Tickle in the back of the left nostril, some sneezing, and the runny nose. Both nostrils now plugged. I have taken some Benedryl and cold medicine, hoping that I can avoid 3-4 days of misery and chaffed nose.
There is no doubt in my mind that this reaction is caused by the AirMini. As others have pointed out, the disappointment is in not getting a workable product and losing over $1000 in the process. I will contact Resmed but I expect they wii say Airmini is past the return period.