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Air purification exhibition in Beijing

Updated: 2014-04-15 08:20 (chinadaily.com.cn)
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Air purification exhibition in Beijing

Portable PM2.5 attract visitors at an exhibition of air purifiers and anti-bacterial disinfectors at the National Agriculture Exhibition Center in Beijing on Monday, as heavy smog continues to shroud the capital. Zou Hong/China Daily

Special: Fight air pollution 

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