I just spent a ton of cash and purchased a whole home whole-house air purifier, i have to tell you that I am so glad I decided to make this investment, however because this whole home air purification idea is a whole current world of air quality. It gives current meaning to the words wonderful air quality! I have used portable whole-house air purifiers in our home for the longest, and while they are good, they do not labor as a total indoor media air cleaner; Only in the rooms that they are set in… With the whole home air purification idea it gets its name for what it does. It cleans and purifies the air in the whole house! This happens as it becomes area of your central heating and a/c idea and you turn it on with the same temperature control that you do for your heat and cooling… The whole home air purification idea can run by itself or it can run at the same time with your central heating and a/c idea unit. It all comes out of the air vents and does its job well. I enjoy running it with our central a/c at the moment because it is the sizzling time of the year, but mixing the whole home air purification idea with the quality a/c that I have is enjoy heaven! There is no other fantastic feeling in the world in our humble opinion. It is just enjoy sitting on a clean mountain enjoying the fresh air and cool breeze when you run the central a/c idea with the whole home whole-house air purifier.