Problems with indoor air quality could be caused by several factors including old furnace or air conditioning filters, leaky ducts, or infiltration through leaky doors and windows.  Too much moisture in a home can lead to mold, mildew, or other biological growth.  

What You Can Do

-Check air filter and clean or replace regularly

-Invest in high efficiency pleated filter

-Seal leaky doors and windows

-Leave your shoes at the door (#1 cause of dust!)