要说这个寒假最大的学习收获，应该就是对口罩的分类及功能有了新的认知。但是口罩的英文知识你了解多少？
#1 Surgical mask/<font>
医用外科口罩/<font>
It usually has three layers. It is a basic defense against some viruses.
医用外科口罩通常有三层，能基本防御某些病毒。/<font>
#2 N95 mask/respirator/<font>
N95型口罩/<font>
It is a safety device that covers the nose and mouth and helps protect the wearer from breathing in some hazardous substances. It is designed to filter out at least 95% of the dust and mold in the air.
N95型口罩是一种保护鼻子和嘴巴的安全口罩，有助于保护佩戴者，防止吸入一些有害物质。它能过滤掉空气中至少95%的灰尘和霉菌。/<font>
#3 Cold weather face mask/<font>
保暖口罩/<font>
It can protect you from cold and wind. It is usually made of wind-breaking material like nylon blends. But it doesn’t help much in the context of virus.
保暖口罩可以在寒冷和大风的天气里保护你，通常是由防风材料如尼龙混合物制成。但是在病毒环境下，它没有多大帮助。/<font>
#4 Activated carbon mask/<font>
活性炭口罩/<font>
Mask with a charcoal filter cuts out odours effectively making it ideal for general purpose, especially suitable for use across various industries such as engineering, manufacturing, pharmaceuticaland many more.
带有活性炭的口罩可以有效去除异味，非常适用于一般用途，尤其适用于工程、制造、制药等行业。/<font>
根据最新的新闻消息，一大批口罩即将投入市场，缓解目前的口罩荒。就算有了口罩大家也尽量减少外出，主要安全防护，保护好自己！
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