Indoor air home can be 2-5x’s (even up to 100x’s) more polluted than outdoor air. We take 23,000 breaths everyday. That’s a lot of breaths. The World Health Organization (WHO) reports that over 92% of people living in cities do not breathe…

What are the harbingers of Beijing’s end of (clear) days? Each polluted city’s smog is unique. It sounds strange, but just like the cuisine or architecture, every city that is regularly engulfed in a man-made cloud of yuck can see…