China air purifier sales slide as air quality improves
Demand drops as several new competitors enter market One of the few silver linings encircling China’s huge clouds of smog has been the booming market for air purifiers. So bad is the air in big cities such as Beijing and so great the risk to health that Chinese consumers have been willing to pay more than Rmb2,000 ($330) for a purifier to clean the air they breathe. But for several companies who rode the boom, bad air no longer generates bumper revenues....