I got the Aaira + Humidifier about a month ago. I have always had a humidifier because where I live causes sinus issues. However, I did not realize how beneficial an air purifier would be. The dual system has helped me so much this past month. The weather has been crazy & my sinuses normally go bonkers when the weather fluctuates.  Since I got the Aaira, everything has been pretty stable. I am loving the cleaner air in my house too.