<http://schema.org/description>
"The quality of the air we breathe affects our health and mental state. It is also often overlooked, however, since we quickly acclimate to less than ideal air. Take this quiz to learn more about breathing easily and the main hazards you need to look out for."^^<http://www.w3.org/2001/XMLSchema#string>
<http://home.howstuffworks.com/home-improvement/household-safety/tips/indoor-air-quality-standards-quiz4.htm>