空気汚染にうんざりしたら...マスクを入手しよう!

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市場で入手可能な大気汚染防止のためのマスクには多くの種類があります( Totobobo Respro Vogmask 3M N95 の...)。我々はマスク生産者のいずれとも関係ありませんが、ここにいくつかのマスクを推奨します:



3M™ N95 Respirators

The most common and affordable mask are known that the 3M N95 masks (picture above is for the 3M 9501 model). Despite beeing very affordable (5 to 6 RMB a piece), the 3M N95 are always among the top performing masks for Particulate Matter (i.e. PM2.5 Air Pollution). One of the great advantage for the 9501 model is to be foldable, so that you can always take one with you without it taking much space. And if you forgot to take One, you can also get this mask from any convinience store in China (like 7-Eleven).

The "N95" label stands for the mask ability to filter out at least 95% of airborne particles larger than 0.3 microns (for reference, PM2.5 particules are 2.5 microns). From all the test result, N95 is good enough for filtering most of the PM2.5 particules, but sensitive persons can consider using N99 version of those masks (N99 stands for filterig more the 99% of airborne particles). Note that a similar mask, with model number 9001 is also commonly available and corresponds to N90 filtration standard.

Note that to be really efficient, those masks should be used and worn properly to ensure a good "fit" with the face. You can refer to this page from Singapore goverment from a simple but good explanation on wearing N95 masks.

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3M™ Aura™ Particulate Respirators

For those with a bit more budget and still interrested in the 3M masks, the Aura™ 93xx series is a very good option. The cost is a bit higher (33 RMB for 1 piece for the premimum 9332 model, while it is 29 RMB for 5 pcs for the previous 9501).

Half of the models (93x2) come with an exhaust valve (branded as Cool Flow™), which offers improved comfort, especially for those having difficulty to breath comfortably while wearing the masks. There are also 3 levels of filtration performance (FFP1, FFP2 and FFP3). The N95 standard is almost similar to FFP2 and the N99 to FFP3 ( see wikipedia for the full explanation).

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Totobobo™ Hightech Anti-Pollution Masks


Totobobo™ is a professional Singapore company manufacturing their own masks since 2003. There design and concept is really unique, making it very useful for those on the move.

There has been some recent studies showing that totobobo fit test does not perform as well as other brands: When wearing a mask (even the 3M N95), fit molding is an essential step to ensure that there are no unfiltered air flow. And this fit moudling is both the strength and weakness of totobo. On one side, totobo has a unique heat moudling solution - that no other mask have, but if this step is not done corretly, then the fit test won't be good. For more information, check totobobo's blog

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Respro® Pollution Masks

The Respro® Masks have been on the market for many years, and are especially suitable in the "urban sports environment", i.e. when biking in the city and having to get through heavy traffic where cars are the source of pollution (especially those diesel cars...).

The mask come with two valves for an easier breathing, as well as with replacable filters. 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.

The mask itself is made of Neoprene, which has the advantage of being resiliently stretchable, as well as beeing adaptable to varying facial features, thus ensuring a good sealing around the face - and therefore a good "fit".


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Vogmask™ N99 CV (Carbon Layer / Exhaust Valve)

Last, but not the least, Vogmask™ is a trendy mask. From a filtration point of view, it uses microfiber filtration fabric to provide an N99 rating. Half of the models come with a valve, similar to the 3M Cool Flow, for improved comfort.


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For more information about other masks and test result, you can refer to the Doctor Richard Saint Cyr's blog: my health beijing. myhealthbeijing.com.



Greenpeace: PM2.5 is a measurement of small particulate matter in the air, and until recently its omission from official air quality readings has been a major hurdle in solving China

空気の質と大気汚染指数で

大気品質レベルについて

指数 大気質指数の分類(米国) 健康影響 / カテゴリ 粒子状物質(PM10,PM2.5)
0 - 50 良い - Good 通常の活動が可能 なし
51 -100 並 - Moderate 特に敏感な者は、長時間又は激しい屋外活動の減少を検討 非常に敏感な人は、長時間または激しい活動を減らすよう検討する必要がある。
101-150 敏感なグループにとっては健康に良くない - Unhealthy for Sensitive Groups 心臓・肺疾患患者、高齢者及び子供は、長時間又は激しい屋外活動を減少 心疾患や肺疾患を持つ人、高齢者、子供は、長時間または激しい活動を減らす必要がある。
151-200 健康に良くない - Unhealthy 上記の者は、長時間又は激しい屋外活動を中止
すべての者は、長時間又は激しい屋外活動を減少
心疾患や肺疾患を持つ人、高齢者、子供は、長時間または激しい活動を中止する必要がある。それ以外の人でも、長時間または激しい活動を減らす必要がある。
201-300 極めて健康に良くない - Very Unhealthy 上記の者は、すべての屋外活動を中止
すべての者は、長時間又は激しい屋外活動を中止
心疾患や肺疾患を持つ人、高齢者、子供は、全ての屋外活動を中止する必要がある。それ以外の人でも、長時間または激しい活動を中止する必要がある。
300+ 危険 - Hazardous 上記の者は、屋内に留まり、体力消耗を避ける
すべての者は、屋外活動を中止
全ての人が屋外活動を中止する必要がある。特に、心疾患や肺疾患を持つ人、高齢者、子供は、屋内に留まって激しい活動を避け静かに過ごす必要がある。
(Reference: see wikipedia, and cn.emb-japan.go.jp/)

あなたは空気の質や汚染についての詳細をお知りになりたい場合は、WikipediaAirNowを参照してください。

北京の医者Richard Saint Cyrの非常に便利な健康アドバイスについては、 www.myhealthbeijing.com をチェックしてください。


Usage Notice: All the Air Quality data are unvalidated at the time of publication, and due to quality assurance these data may be amended, without notice, at any time. The World Air Quality Index project has exercised all reasonable skill and care in compiling the contents of this information and under no circumstances will the World Air Quality Index project team or its agents be liable in contract, tort or otherwise for any loss, injury or damage arising directly or indirectly from the supply of this data.



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