These are the most popular masks in China.…

These are the most popular masks in China. Are they really anti-smog? In Beijing, we don't talk about the weather. We talk about the AQI (Air Quality Index), HEPA filters, wind directions, and face masks.…

The smog refugees from China

The new year in Beijing was ushered in with heavy smog. You could blame the stubborn habit of Chinese burning firecrackers. But there's more to it. In the last five years, smog was a popular…

How China’s smog is boosting tech startups

Beijing municipal government last week issued an orange alert for air pollution, ordering schools and kindergartens to cancel all outdoors activities for students. Air pollution, mainly in the form of smog, remains a threat to…