I too, have been having the same problems. Sneezing non
for hours when I get up in the mornings. I take Benedryl but like some of you, I really don't want to take that so often. It makes me so tired! I've tried cleaning my machine, mask, put new filters in, bought a new hose, mask, etc. Nothing seems to help. I have had this machine since 2001. Maybe after 10 years, and 20,000 hours on it, I need to replace it? I do have a humidifier on it, but can't control settings.