EPA studies show that even in the smoggiest cities, the air inside most modern homes is usually at least ten times more polluted than the air outside.So serious and prevalent is this issue that environmentalists have coined a new term for it—IAQ or Indoor Air Quality. Today’s homeowners need to become more aware of the importance of IAQ and what they can do about it. Rheem offers a full line of Indoor Air Quality Products to improve the air in your home.