My Grandparent's are in need of a new basement dehumidifier since theirs died, and this abnormally hot weather has already got their basement smelling slightly wet and moldy. I went in search of one online (looking for the best deal I can find of course), and I stumbled across a site that I thought some people might find useful.
Ezbreathe.com if offering a free Indoor Air Quality Evaluation. Just scroll to the bottom of their contact page, and fill out the form for the free evaluation. Sometimes the air quality inside our homes can be worse than the air quality outside, so it might be a good idea to have yours evaluated, especially if you have horrible allergies like I do. Your home could be making you sick!