Indoor air quality is one of the top five environmental risks to public health, researchers say. After all, most people spend 90% of their time indoors, whether in homes, office buildings, or other structures. Ventilation is the “new frontier for making houses healthy,” Carl Seville of SK Collaborative, a green building consulting and certification firm, told Forbes.com in a recent article.
There’s reason for the added attention. Recent studies have shown indoor air is polluted with lead, dust mites, radon, pests, carbon monoxide, pet dander, mold, and secondhand smoke, according to the National Environmental Education Foundation. Ventilation in the form of bathroom fans and kitchen range hoods can help remove some of the bad air from homes. Older homes, however, may be prone to leaks of these pollutants.