Editor's note: Beijing issued its second ever red alert for pollution, the most serious of the four-tier warning system, from Dec. 19 to 22 as the city braced for a new wave of choking smog. Face masks come in handy for defending against air pollution and keeping warm at the same time. Check out this mask "exhibition" in Sanlitun, a shopping center in Beijing's eastern Chaoyang District.
A woman wearing a white face mask and a pair of sunglasses braves the cold and smog on a Sanlitun street in Beijing's eastern Chaoyang District on Dec. 19, 2015. [Photo by Guo Yiming/China.org.cn] |
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