Shanghai pollution soars: Children ordered indoors, flights cancelled, construction halted | The Star
Chinese urbanites are spending millions on anti-pollution masks—and most of them don't do anything — Quartz
What's the Best Air Pollution Face Mask for China? - Healthy Air Filter Face Mask for Virus, Wildfire Smoke, Smog, Dust, Mold, & Allergies
Expatriates distribute face masks in Shanghai[2]|chinadaily.com.cn
Tourists wearing face masks against air pollution visit the Bund along the Huangpu River in heavy smog in Shanghai, China, 30 January 2018. Skywatch Stock Photo - Alamy
With climate deal, China tries to address its deadly addiction to coal | Fortune
Choosing an Air Pollution Mask for China - David's Been Here
A Buying Guide to Air-Pollution Masks - WSJ
People Wearing Masks in Shanghai Editorial Stock Photo - Image of concept, condominium: 172331873
Expatriates distribute face masks in Shanghai[8]|chinadaily.com.cn