上星期，#口罩还要戴多久#登上微博热搜。

关于这个咱们遍及关怀的问题，上海市新冠肺炎临床救治专家组组长张文宏教授主张，咱们对疫情还要坚持高度警觉性。

张文宏表明：

China still needs to pay close attention to the contagion for the next one to two months and avoid large-scale gatherings, and measures such as those requiring a 14-day quarantine of people returning to big cities should continue.

未来一两个月，咱们仍是要对疫情坚持高度警觉，这种状况还要继续一两个月，大规模聚会办不得，返城人员14天阻隔的办法还要继续坚持。

"If we well implement such preventive measures, and the number of new infection cases remains zero for a certain period of time, in one or two months it'll be time to take off masks," Zhang said.

假如此类防控办法履行得好，新增病例零增长继续了一段时刻，那么一两个月后就可以摘口罩了。

当时，不少城市渐渐的开端有序复工复产，职工出门上班需求戴口罩，落落大方就呈现口罩不够用的忧虑。

针对这一问题，现在广东、上海以及北京等地已有企业研制出了可重复运用的口罩。

Last month, companies in Guangdong province, Beijing and Shanghai reported producing a new type of face mask that uses a nanomaterial membrane, rather than the typical melt-blown fabric, to filter bacteria, viruses and other pathogens, according to local health and medical products authorities.

据当地医疗用品管理部门表明，广东省、北京市以及上海市已于2月上报称正在出产一种新式口罩，这款口罩运用的资料不是传统的熔喷无纺布，而是用纳米资料薄膜资料来过滤细菌、病毒以及其他病原菌。

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

这种新口罩的产品规范与N95适当，意味着其过滤各种颗粒的有效性超越95%。

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.

管理部门表明，新款口罩佩带舒适、透气性好，并且依据运用者所在的环境以及佩带时刻可最多重复运用20次。

The retail price for the masks created by companies from Shanghai will be around 15 to 20 yuan each.

上海企业出产的新款口罩零售价大约在每个15到20元。

据企业自测，该口罩饱尝沸水、酒精、84消毒液等的重复消毒处理20次后，过滤功能（filtering efficiency）仍坚持根本安稳，但企业在产品运用引荐中表明，重复消毒不要超越10次。

在口罩没有破损或许被污染的情况下，一般市民可自己随时给口罩消毒（disinfect their masks），其间一种易于操作的方法是，用70度以上热水浸泡15分钟（soak the used masks in higher-than-70-degree water for 15 minutes）或许56度以上热水浸泡30分钟，浸泡过的口罩可放在纸巾等吸水功能好的资料外表吸收水分，之后用电吹风的热风将口罩吹干。

【相关词汇】

一次性外科口罩 disposable surgical mask

防护服 protective suit

防雾霾口罩 anti-smog mask

可重复运用口罩 reusable mask