Expatriates distribute face masks to pedestrians to raise awareness of pollution in Shanghai, however an expert says these masks are a 'waste of time'. Photo: Reuters

Air filters and face masks offer little protection to big city air pollution

From costly air filters to cheap face masks, unless big cities tackle air pollution seriously the only sure protection is to move, says an expert

Topic |   China pollution

TOP PICKS

Expatriates distribute face masks to pedestrians to raise awareness of pollution in Shanghai, however an expert says these masks are a 'waste of time'. Photo: Reuters
READ FULL ARTICLE