You’ve probably already do this, but I have to clean my cpap machine every night. I’m just so sensitive to particles and any other floating elements flowing from the machine. I thought I was going to die when I had the Phillips premium machine, as it released so many fibrous particles in the air stream. In the a.m. upon awaking I would sneeze a dozen times with lotsak fluid flowing out of my swollen sinuses. Eventually I could see tiny fibers floating in the water each morning, and then that’s when got another machine. I hope you find the source of your issues.