Many posts are now circulating on Weixin circles about the potential harm PM2.5 might do - going straight to your lungs and then the blood circulation, killing off macrophages and clogging up capillaries. This is by far a deeper understanding of China's environmental problems than most ordinary Chinese people realized before Locke's arrival. Now so-called “PM2.5 masks" are in the supermarkets, 3M made a fortune with their N95 masks, and Vogmask has achieved significant market penetration in Tier 1 cities. Dealing with the smog problem is on the top agenda at the People's Congress this week.
I'm working with another Silicon Valley entrepreneur to make a version of PM2.5 mask that's a bit easier to breath through. Having to live here for at least another year with my family, I'm doing myself a favor, if nothing else.