No.  Outdoor air contains pollens, fungus, bacteria, air pollution, cigarette smoke, car exhaust and hundreds of other chemicals.  When you and your family members come into your home, those pollutants are carried in and usually end up in your carpet.

If you have allergies, asthma, emphysema, or other breathing problems – one major source of your problem could be the pollens, fungus, and chemicals in your carpet.