上个月，广东省、北京市以及上海市据报道正在生产一种新型口罩，这款口罩使用的材料不是传统的熔喷无纺布，而是用纳米材料薄膜材料来过滤细菌、病毒以及其他病原菌。
Last month, companies in Guangdong province, Beijing and Shanghai reported producing a new type of face mask that uses a nanomaterial membrane¹, rather than the typical melt-blown fabric², to filter bacteria, viruses and other pathogens, according to local health and medical products authorities.

 

The new masks are on par³ with N95 standards, meaning they filter particles of all sizes with at least 95 percent efficiency.

 

The masks are also comfortable, easy to breathe through and can be reused up to 20 times depending on the user's setting and wear time, the authorities said.

 

The retail⁴ price for the masks created by companies from Shanghai will be around 15 to 20 yuan ($2.14 to $2.85) each.

 

The prices for the ones made by Beijing and Guangdong companies are still unknown because those companies just recently began production.

 

 

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