PM2.5口罩热销作用有限

PM2.5 masks become popular 

A type of anti-PM2.5 face mask is selling like hot cakes on the Internet, as China has been covered by dense fog and air pollution for several days, eastday.com reported.

据东方网报道，连日来，受雾霾和空气污染的影响，一类"PM2.5口罩"在网络的销售火爆起来。

Nearly 1,500 entries for so-called PM2.5 masks can be found on Taobao, with prices ranging from RMB1-100. Most of these products claim to be antibacterial and dustproof, with activated carbon fabric and even antitoxins.

在淘宝网可查询到近1500条相关产品的信息，价格从1元到100元不等。产品宣传中多以抗菌、防尘、添加活性炭、甚至防毒为卖点。

But experts warn that most of these products can do nothing to prevent inhalation of tiny particulate matter less than 2.5 micrometers in size, suggesting reduction of outdoor activities can be far more effective.

但专家称，市面上大多数所谓PM2.5口罩根本无法阻隔PM2.5微粒，对于pm2.5防护，建议市民还是以减少户外活动为主。

内容来源：中国日报手机报

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