New | Face mask supplies become scarce as smog still blankets Chinese cities

China’s biggest online face mask sellers were running out of stock on Wednesday as consumers rushed to protect themselves against smog shrouding large swathes of the northern mainland for an entire week.
Beijing’s official reading for PM 2.5 – small airborne particles which easily penetrate the lungs and have been linked to hundreds of thousands of premature deaths – stood at 486 micrograms per cubic metre on Wednesday morning. The World Health Organisation’s recommended safe limit is 25.
An alternative measure by the US embassy in Beijing said PM 2.5 levels reached 557 in the city. In Xinji, in the neighbouring province of Hebei, official Chinese statistics put the figure at 761.
I found masks were sold out and the price of air purifiers is shooting up. Is everybody panicking?
The capital was on its sixth day of an “orange” smog alert – the second-highest on the scale – with the air tasting gritty and visibility down to a few hundred metres.
The choking smog has seen anti-pollution product sales boom and online face mask stores were struggling to meet demand.
Of the 29 models of face masks provided by US industrial and equipment supplier 3M’s flagship store on Tmall.com, a business-to-consumer shopping platform, 26 were sold out or unavailable on Wednesday.
The Tmall outlet of Totobobo, which makes transparent, reusable masks in Singapore, put up a notice saying new stocks would not be available until April 1.