I have been in my house for about a year and it seems that I have more dust than I should. I lived for many years in a humid environment with radiator heat and no ducts, so maybe this is just how it is. I think it may show up more quickly in this house because I have solid surface flooring - no carpet. But it seems that i have more dust than I should. So I was thinking maybe the ducts need to be cleaned? I have never had it done and am not sure if it is something that helps or if it is just a ripoff. Anyone?