Air quality warnings show PM2.5 particles at dangerous levels. Learn why today's hazy sky is a toxic soup that's damaging ...

Air pollution causes health problems and is attributable to some 50,000 annual deaths in the United States, but not all air ...

Here's how to tell whether to go with a window a/c, portable unit, a ductless mini-spit, an evaporative cooler—or a combo of several.

The U.S. Green Building Council recently released an updated version of its School Indoor Air Quality (IAQ) Fact Sheet series ...