According to the American Lung Association and the Environmental Protection Agency (EPA): Americans spend more than 90 percent of their time indoors; with traditional building materials, the air inside the homes can be two to five times more toxic than the outside air.

Today’s energy-efficient construction results in tighter indoor spaces that keep outside air out. That means you’re keeping stale air in.  Which is why, according to the EPA, indoor air is one of top five environmental health risks.

Did you know that the Philadelphia area is ranked by Forbes magazine as No. 1 on its 2011 Most Toxic Cities list? So, how much worse it must be indoors that is up to five times more toxic than outside air!