How to choose a right mask? 防霾口罩您戴正确了吗?

2016-12-21 12:00 千龙网

打印 放大 缩小

这几天,北京处于严重雾霾之中,许多人外出时会戴上口罩进行防护。专家介绍,正确选择和佩戴口罩是有效防护PM2.5的措施之一。那么如何选择购买和佩戴呢?北京市疾控中心的专家向大家介绍如何正确佩戴口罩。

Many locals choose to wear a mask during an outing in recent days when heavy smog lingers in Beijing. Experts said wearing rightly a mask is one of the important methods to defend PM2.5. But how to choose a right mask and how to wear it in a right way? Experts from the Beijing’s CDC give their advisories.  

如何选?

专家介绍,首先应到正规渠道购买,根据不同的空气污染程度选择相对应防护级别效果的口罩。口罩的防护级别由低到高分为四级:D级、C级、B级、A级,分别对应不同的空气质量情况。A级对应“严重污染”,在PM2.5浓度达500微克每立方米时使用;而D级对应的是“中度及以下污染”。

在初次选用口罩时,需参照产品使用说明试戴,购买与面部具有良好贴合性的产品。

How to choose rightly?

Expert said, firstly a mouth muffle shall be bought from a certified channel, and secondly its protection level shall match a pollution. Protection level of a mouth muffle is classified into A, B, C, D from the highest to the lowest. A level-A mask is for heavy pollution use when the PM2.5 concentration is above 500 microgram per cubic meter. A level-D mask is prepared for medium and low air pollution.

Following the instruction and trying it on to check whether a mask perfectly fits on your face is the third step. 

口罩级别

D级:适应于中度(PM2.5浓度≤150微克每立方米)及以下污染

C级:适应于重度(PM2.5浓度≤250微克每立方米)及以下污染

B级:适应于严重污染(PM2.5浓度≤350微克每立方米)

A级:在PM2.5浓度达500微克每立方米时使用

Protection level of a mask

Level D: designed for defend medium air pollution (PM2.5 concentration ≤150 microgram/cubic meter)

Level C: designed for defend heavy air pollution (PM2.5 concentration ≤250 microgram/cubic meter)

Level B: designed for defend severely heavy air pollution (PM2.5 concentration ≤350 microgram/cubic meter)

Level A: designed for air pollution with its PM2.5 concentration ≤500 microgram/cubic meter

如何戴?

专家介绍,口罩使用遵照其使用说明进行,佩戴时必须完全罩住鼻、口及下巴,保持口罩与面部紧密贴合;心脏或呼吸系统有困难的人(如哮喘肺气肿)、佩戴后头晕、呼吸困难和皮肤敏感者不建议佩戴口罩,尽量减少室外活动;骑行或运动时不宜戴级别过高的口罩,以防造成呼吸不畅。

一般来讲,长时间佩戴高呼吸阻力的口罩可能对身体健康产生不利影响,所以不建议消费者长时间、超等级佩戴防护型口罩。

How to wear rightly?

Experts suggest to follow its instruction when wearing a mask, to make it perfectly cover the nose, mouth and jaw; those with a heart or respiratory disease (like asthma, emphysema) or feeling dizzy or hard to breath or too sensitive of their skin are not recommended to wear a mask,  they should reduce outdoor activities at their best; Experts also suggest not to wear a mask with an unsuitable higher protection level when cycling or doing any sport for the sake of possible difficulty in breathing.  

In general, a long-time wearing a mask with high breathing resistance harms health, which is thus not recommended.

健康小贴士

北京疾控提醒市民,发布空气重污染红色预警时,要注意健康防护。

1.儿童、老年人和呼吸道、心脑血管疾病患者等易感人群尽量留在室内,避免户外活动;

2.一般人群应尽量避免户外活动,如户外活动可适当采取佩戴口罩等防护措施;

3.请勿燃放烟花爆竹和露天烧烤;

4.外出回家后建议及时洗脸、漱口、洗口鼻,脱掉外衣,减少污染;

5.雾霾期间应尽量关闭好自家窗户,尽量减少室内活动,特别是减少烹饪、吸烟等导致室内空气质量下降的活动;

6.烹饪时保持厨房门关闭,开启抽油烟机;尽量避免煎、炸食品,清淡饮食,多喝水;烹饪结束后继续开启抽油烟机5分钟以上;

7.家中有空气净化器的,在雾霾期间应开启,有利于减少室内有害颗粒物的浓度,使用时要注意勤换过滤芯;

8.当室外大气中的雾霾消失后再开窗通风,让室内空气中的细颗粒物尽快散出,以改善室内空气质量;

9.号召大家主动参与节能减排,绿色出行。尽量少开私家车,多乘坐公共交通工具,降低出行中的能耗和污染;

10.目前正处于本市流感高发期,建议有基础病的敏感人群,应少到人多拥挤、空气污浊的场所,注意个人卫生,勤洗手,注意随时增减衣物,以保持良好的身体状况。

Health tips

The Beijing CDC reminds citizen of following the tips below when an air pollution red alert is in effect.

1. Children, elderly, patients of heart or respiratory diseases and other vulnerable population should reduce their outdoor time as mush as possible.

2. Wearing a mask if you have to go out to the open air.

3. Don’t even think about firecrackers or barbecue in open air.  

4. Wash your face and rinse your month and take off your coat as soon as you get home.

5. Keep windows shut and control any activity that may result in an air quality drop in the house like shorten your cooking and smoking time.  

6. Keep the door close and ventilator on during cooking. Keep the ventilator on for five more minutes after you finish cooking. Do your best to avoid frying. Choose light diet and drink more water.

7 Keep your air cleaner on at home during haze days, and replace its filter timely.

8 Open your widows for ventilation when the smog is gone.

9. Take public transport for sake of energy saving and pollution reduction.

10. Avoid large gatherings and places of dirty air and pay attention to personal hygiene.

责任编辑:Sun Chi(QN0019)