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曾几什么时候，口罩已成为了人们逐日出行必备物品。有统计数据显示，口罩的网上销量乃至一度超出了避孕套。
如斯首要的糊口用品，怎能不领会一下关于它的各类英文表达。我们今天就来学一学。
市道市情上常见的几种口罩
▌保暖口罩
Cold-weather mask
常由几层棉布组成，内夹棉絮。这种口罩凡是只具备保暖的感化，可以阻隔较大颗粒的尘土，但对付可吸入颗粒物几近没有防护感化。
▌医用外科口罩
Surgical mask
大多都为一次性利用，不必要洗濯，利用也比力便利，同时，相较于民用口罩，对呼吸道疾病的防护感化加倍较着。
▌活性炭口罩
Activated Carbon mask
活性炭口罩的活性炭层可增长对异味的滤除感化，但不克不及增长对颗粒物的防护结果。
▌防污染口罩
Anti-pollution mask
也可称为 pollution mask 和 respirator [‘resp reit ]。指可以或许过滤氛围中的颗粒物的口罩，如3M、Vogmask一类的N95型口罩。
▌时尚口罩
trendy mask
寻求时尚、潮水美感的口罩，同时也能够作为保暖感化，但一般说来，此类口罩对疾病的防护是比力微弱的。
▌此外，mask在英语(精品课)中不但只是口罩，还指面罩、面具，好比扮装舞会上带的面具就叫做masquerade mask。
咱们今天偏重讲的是防雾霾的pollution mask。
防霾口罩经常使用表达
▌N95型口罩 N95 mask
也能够称为N95-certified masks，或masks rated N95。
95型口罩，是NIOSH（National Institute for Occupational Safety and Health，美国国度职业平安卫生钻研所）认证的9种防颗粒物口罩中的一种。
A mask rated N95 filters out more than 95% of particles larger than 0.3 microns.
到达N95品级的口罩可以滤除跨越95%的直径大于0.3微米的颗粒物。
N99的意思就是可以滤除99%的直径大于0.3微米的颗粒物。
▌耳戴式口罩 earloop mask
▌头戴式口罩 headband mask
▌耳带、头带 strap
可调理是非的耳/头带是adjustable strap。
例句：
Straps can go either around the head or just the ears, depending on the model.
根据口罩型号的分歧，带子可以挂在耳朵上，也能够箍在头上。
▌折叠式 foldable
例句：
One of the great advantage for this model is to be foldable, so that you can always take one with you without it taking much space.
这个型号的口罩最大长处是可以折叠，有益于随身携带，而不占用太大空间。
▌可洗濯 washable
例句：
The mask is washable many times with no loss of filtration effectiveness.
这款口罩可以屡次洗濯，且不会丧失过滤结果。
▌滤芯 filters
可改换滤芯是replaceable filter。
例句：
The replaceable filter is a bit difficult to switch out, but it’s not a serious problem.
可改换滤芯换起来有些坚苦，不外问题不大。
▌随弃式 disposable
例句：
Check out a variety of disposable respirators that help provide protection from particles, germs &gases.
快来看看各类格局的随弃式防护口罩，它们可以抵当颗粒物、细菌和毒气。
▌一次性的 one-time-use
例句：
Do one-time-use masks actually help to protect you?
一次性口罩真的能起防护感化吗？
▌可调理金属鼻夹 metal nose clip
这个表述比力机动，还可以说成metal nose bar、metal nose band、metal nose bridge等。
例句：
This mask has a metal nose clip with soft foam nose cushion for an easy and comfortable fit.
这款口罩带有金属鼻夹和柔嫩海绵垫，很轻易贴合且很恬静。
▌呼吸阀
exhaust valve / exhalation valve
例句：
This model comes with an exhaust valve, which offers improved comfort, especially for those having difficulty to breath comfortably while wearing the masks.
这个型号的口罩带有呼吸阀，佩带起来更恬静，对付那些戴着口罩呼吸不顺畅的人来讲特别如斯。
口罩的成果
人们凡是从如下几个方面来测试口罩是不是好用。
▌Comfort 恬静性
比方：
These masks are usually very comfortable on the face. But their straps go behind the head and not around the ears, which is less practical for many users.
这些口罩佩带起来凡是很惬意，可是带子是箍在头上，而不是耳戴式，以是对有些人来讲不是很好用。
This mask is usually very comfortable but the plastic edges can leave skin indentations which last longer than other softer masks.
凡是来说，这类口罩佩带起来很恬静，可是塑料边沿会在皮肤上留下印记，和其他柔嫩质料的口罩比拟，印记消掉要花更长的时候。
▌Air leaking 密封性
比方：
There is very little leaking if the metal nose bridge is properly pinched together.
若是把金属鼻夹夹紧的话，氛围几近不会漏进来。
This mask is not quite as snug as some others and I did occasionally smell street odors.
这款口罩不如其他一些口罩那末贴合，我有时辰能闻到街道上的气息。
▌Exercising 活动时利用
比方：
I found it very comfortable to breathe while biking, especially if the model has an exhalation valve.
我感觉戴着这类口罩骑车呼吸十分通顺，特别是带呼吸阀的那种型号。
The fabric gets soggy during exercise. I also found it harder to take deeper breaths.
布料会在活动进程中浸湿，并且要深呼吸也很坚苦。
I had no problems during biking or jogging with this mask and still felt able to catch a breath.
戴着这款口罩骑自行车或跑步都不可问题，还能喘得上气。
▌Fog factor 眼镜是不是起雾
比方：
I had very little fogging of my glasses with a good seal around the nose.
因为鼻子四周十分密封，以是眼镜上几近不会起雾。
Sometimes the nose fit isn’t perfect and my eyeglasses fog up.
有时辰鼻子部门不是很贴合，我的眼镜就起雾了。
▌Longevity 利用寿命
比方：
The mask can last at least a few days of use before losing effectiveness.
这类口罩在延续利用几天后才会失效。
The mask itself can last for years, and you just pop in a new filter every few days.
口罩自己可使用多年，你只要隔几天放一个滤芯进去就好了。
有效的句子
最后学一些评论辩论口罩的有效句子。
I only strongly reco妹妹end truly N95-certified masks such as 3M and Vogmask.
我只强烈举荐真正经由过程N95认证的口罩，好比3M和Vogmask。
The only masks that are worth buying are the N95 type.
独一值得买的口罩就是N95的。
If you want to protect yourself against the minuscule particles you’ll need professional masks. Very pricy and inconvenient to wear.
若是你想抵当住微颗粒，就必需利用专业面具，很贵，并且佩带未便。
After about 2-3 weeks of use, the mask looks horribly grey!!
用了两三周后，口罩都变灰了，可吓人！
I’ve noticed that counterfeit/fake masks are a huge problem in China, and I was wondering where will I can purchase authentic 3M masks in Beijing.
我发明中国各类冒充伪劣口罩是个大问题，不晓得北京哪里能买到3M正品呢。
Many masks aren’t good for heavy breathing such as I would do while running.
有些口罩在呼吸繁重的时辰，好比跑步的时辰，戴着不是很合适。
The filter life span is said to be 69 hours, so assuming that you bike 1 hour every day, that’s 3 month use for one filter – not so bad.
一个滤芯的寿命听说是69个小时，假如你天天骑一小时车，那一片滤芯便可以用3个月，挺不错。
It sometimes takes 
a bit of fine tuning the metal nose clip for a good seal.
有时辰要略微调一下鼻夹，才能到达好的密封结果。
Air pollution is such a serious issue that we really need to stick with the best masks — with proven results from independent labs, not just TV advertorials and website testimonials.
如今氛围污染太紧张，咱们真的要用最靠谱的口罩才行，得有自力实行室的查验陈述，而不是电视告白和网站上贴的各类证书。
