Clean air is top-of-mind for just about everyone right now. Our usual cold and flu season is more troubling this year with the addition of coronavirus, and people are doing everything they can to make sure they keep themselves and their families healthy. As more and more studies are released touting the benefits of adding a humidifier to help fight these viruses, we see more and more customers asking, “What is the difference between a humidifier and an air purifier?”