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Indoor air can be 2-5x’s (even up to 100x’s) more polluted than outdoor air. We take 23,000 breaths ev...

Since releasing the Laser Egg, we have received lots of questions about what it is, how to use it, and per...

The Question: “Hi guys, I was just wondering: I moved from Beijing to Berlin, and my particle detector s...

What are the harbingers of Beijing’s end of (clear) days? Each polluted city’s smog is unique. It soun...