▌N95型口罩N95 mask
也可以稱為N95-certified masks,，或masks rated N95,。
95型口罩，是NIOSH（National Institute for Occupational Safety and Health,，美國國家職業(yè)安全衛(wèi)生研究所）認(rèn)證的9種防顆粒物口罩中的一種,。
?A mask rated N95 filters outmore than 95% of particles larger than 0.3 microns.
達(dá)到N95等級(jí)的口罩可以濾除超過95%的直徑大于0.3微米的顆粒物。 N99的意思就是可以濾除99%的直徑大于0.3微米的顆粒物,。
▌耳戴式口罩 earloop mask
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頭戴式口罩 headband mask
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耳帶,、頭帶 strap
可調(diào)節(jié)長短的耳/頭帶是adjustable strap。
例句：
?Straps can go either around the head or just the ears, depending on the model.
依據(jù)口罩型號(hào)的不同,，帶子可以掛在耳朵上,，也可以箍在頭上。
▌折疊式 foldable
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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.
這個(gè)型號(hào)的口罩最大優(yōu)點(diǎn)是可以折疊,，有利于隨身攜帶,，而不占用太大空間。
▌可清洗 washable
例句：
?The mask is washable many times with no loss of filtration effectiveness.
這款口罩可以多次清洗,，且不會(huì)損失過濾效果,。
▌濾芯 filters
可更換濾芯是replaceable filter。
例句：
?The replaceable filter is a bit difficult to switch out, but it’s not a serious problem.
可更換濾芯換起來有些困難,，不過問題不大,。
▌隨棄式 disposable
例句：
?Check out a variety of disposable respirators that help provide protection from particles, germs & gases.
快來看看各種款式的隨棄式防護(hù)口罩,，它們可以抵抗顆粒物、細(xì)菌和毒氣,。
▌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護(hù)作用嗎,？
▌可調(diào)節(jié)金屬鼻夾metal nose clip
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這個(gè)表述比較靈活，還可以說成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.
這款口罩帶有金屬鼻夾和柔軟海綿墊,，很容易貼合且很舒適,。
▌呼吸閥 exhaust valve / exhalation valve
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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.
這個(gè)型號(hào)的口罩帶有呼吸閥，佩戴起來更舒適,，對(duì)于那些戴著口罩呼吸不暢的人來說尤其如此,。
口罩的功效
人們通常從以下幾個(gè)方面來測試口罩是否好用。
作者: 知性女人A 時(shí)間: 2016-1-4 15:53
▌Comfort 舒適性
例如：
?These masks are usually very comfortable on the face. But their straps go behind the head and not around the ears, which isless practical for many users.
這些口罩佩戴起來通常很舒服,，但是帶子是箍在頭上,，而不是耳戴式，所以對(duì)有些人來說不是很好用,。 ?This mask is usually very comfortable but the plastic edges can leave skin indentationswhich last longer than other softer masks.
通常來講,，這種口罩佩戴起來很舒適，但是塑料邊緣會(huì)在皮膚上留下印記,，和其他柔軟材料的口罩相比,，印記消掉要花更長的時(shí)間。
▌Air leaking 密封性
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例如：There is very little leaking if the metal nose bridge is properlypinched together.
如果把金屬鼻夾夾緊的話,，空氣幾乎不會(huì)漏進(jìn)來,。
?This mask is not quite as snug as some others and I did occasionally smell street odors.
這款口罩不如其他一些口罩那么貼合，我有時(shí)候能聞到街道上的氣味,。
▌Exercising 運(yùn)動(dòng)時(shí)使用
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例如：
?I found it very comfortable to breathe while biking, especially if the model has an exhalation valve.
我覺得戴著這種口罩騎車呼吸十分暢通,，尤其是帶呼吸閥的那種型號(hào)。
?The fabric gets soggy during exercise. I also found it harder to take deeper breaths.
布料會(huì)在運(yùn)動(dòng)過程中浸濕,，而且要深呼吸也很困難,。
?I had no problems during biking or jogging with this mask and still felt able to catch a breath.
戴著這款口罩騎自行車或跑步都不成問題，還能喘得上氣,。
▌Fog factor 眼鏡是否起霧
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例如：I had very littlefogging of my glasseswith a good seal around the nose.
由于鼻子周圍十分密封,，所以眼鏡上幾乎不會(huì)起霧。
?Sometimes the nose fit isn’t perfect and my eyeglasses fog up.
有時(shí)候鼻子部分不是很貼合,，我的眼鏡就起霧了,。
▌Longevity 使用壽命
例如：
The mask can last at least a few days of use beforelosing effectiveness.
這種口罩在持續(xù)使用幾天后才會(huì)失效。
The mask itself can last for years, and you just pop in a new filter every few days.
口罩本身可以使用多年,，你只要隔幾天放一個(gè)濾芯進(jìn)去就行了,。
有用的句子
最后學(xué)一些談?wù)摽谡值挠杏镁渥印?/font>
I only strongly recommend trulyN95-certified masks such as 3M and Vogmask.
我只強(qiáng)烈推薦真正通過N95認(rèn)證的口罩,，比如3M和Vogmask。
The only masks that are worth buying are the N95 type.
唯一值得買的口罩就是N95的,。
If you want to protect yourself against the minuscule particles you'll needprofessional masks. Very pricy and inconvenient to wear.
如果你想抵抗住微顆粒,，就必須使用專業(yè)面具，很貴,，而且佩戴不便,。
After about 2-3 weeks of use, the masklooks horribly grey!!
用了兩三周后，口罩都變灰了,，可嚇人,！
I've noticed thatcounterfeit/fake masks are a huge problem in China, and I was wondering where will I can purchase authentic 3M masksin Beijing.
我發(fā)現(xiàn)中國各種假冒偽劣口罩是個(gè)大問題，不知道北京哪里能買到3M正品呢,。
Many masks aren’t good for heavy breathing such as I would do while running.
有些口罩在呼吸沉重的時(shí)候,，比如跑步的時(shí)候，戴著不是很適合,。
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.
一個(gè)濾芯的壽命據(jù)說是69個(gè)小時(shí),，假設(shè)你每天騎一小時(shí)車，那一片濾芯就可以用3個(gè)月,，挺不錯(cuò),。
It sometimes takes a bit of fine tuningthe metal nose clip for a good seal.
有時(shí)候要稍微調(diào)一下鼻夾，才能達(dá)到好的密封效果,。
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.
現(xiàn)在空氣污染太嚴(yán)重，我們真的要用最靠譜的口罩才行,，得有獨(dú)立實(shí)驗(yàn)室的檢驗(yàn)報(bào)告,，而不是電視廣告和網(wǎng)站上貼的各種證書。（新浪教育）