Clearing the air
By Liu Zhihua | China Daily | Updated: 2012-04-05 08:05

A staff member introduces different varieties of air purifiers to a customer at a Suning Appliance store in Beijing on Dec 6. Heavy smog often chokes the capital, making air purifiers must-haves for many residents. Chen Xiaogen / for China Daily |
Air purifiers are becoming increasingly hot items, as concerns about pollution, especially PM 2.5, grows. Liu Zhihua reports.
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