For most people, it comes as a suprise to learn that a home's interior exposes us to 2-5 times more pollution than we are exoposed to outdoors. Given that most of us spend the majority of our time indoors, and that many buildings are tightly sealed for energy efficiency, creating healthy indoor air is an important step toward "greening" our homes. Simple ways to improve indoor air quality are:
1) Increase air filtration and ventilation in your home. Just open up a window and let the air in.
2) Change your air filters in your heating and cooling duct systems often.
3) Grow houseplants. Plants not only consume carbon dioxide, they also filter out other pollutants.
4) Test for radon, the second leading source of lung cancer. Remediate with radon-filtering/ventilation system if radon is present.
5) Use only non-toxic cleaning solutions. Yes, most household "cleaning" solutions actually contain many cancer-causing ingredients, believe it or not. Save money by changing over to healthy household cleaning supplies. All you need is baking soda, lemon juice, borax, white vinegar, and a bit of elbow grease and you'll be covered.