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室内空气净化器有效吗
一、 使用空气净化器是去除室内颗粒物的有效方法之一
1. Using air purifier is one of the effective ways to remove indoor particulates.
使用空气净化器可以改善室内空气质量。空气净化器对室内空气污染物去除的实际效果受到多方面的影响:如室内外温差,房间容积,房间门窗的数量,房间内人员活动情况等。
The use of air purifiers can improve indoor air quality. The effect of air purifier on the removal of indoor air pollutants is affected by many aspects, such as the temperature difference at home and abroad, room volume, the number of room doors and windows, and the activities of the staff in the room.
本实验选用了10间办公室和10个家庭(每个家庭两个房间),洁净空气量>200m3/h的空气净化器,测量房间内PM2.5的质量浓度随时间的变化情况。实验在室内外温差不同的春季和冬季进行(春季室内外温差相差不大,冬季室内温度高于室外温度),实验期间室内保持窗户关闭,室内人员进行正常活动,记录门开闭的情况。
In this experiment, 10 offices and 10 families (two rooms for each family), a clean air volume > 200m /h air purifier, were used to measure the change of the mass concentration of PM2.5 in the room with time. In the experiment, the temperature difference between indoor and outdoor temperature difference is different in spring and winter (the difference between indoor and outdoor temperature difference in spring is little, the indoor temperature in winter is higher than outdoor temperature). During the experiment, the indoor window closes, the indoor personnel carry on normal activities, and record the door opening and closing.
(1)在春季室内外温差较小的情况下,开机20分钟后,室内PM2.5浓度可降至开机前的8%~81%;开机40分钟后,室内PM2.5浓度可降至开机前的7%~64%;开机60分钟后,室内PM2.5浓度可降至开机前的2%~56%。
(1) in the case of small indoor and outdoor temperature difference in spring, after opening the machine for 20 minutes, the indoor PM2.5 concentration can be reduced to 8%~81% before the start of the machine. After 40 minutes of opening, the PM2.5 concentration in the room can be reduced to the 7%~64% before the start of the machine. After the starting of the machine, the PM2.5 concentration in the room can be reduced to 2%~56% before the start of the machine.
(2)在冬季室内温度高于室外温度的情况下,开机20分钟后,室内PM2.5浓度可降至开机前的1%~65%;开机40分钟后,室内PM2.5浓度可降至开机前的3%~59%;开机60分钟后,室内PM2.5浓度可将至开机前的1%~49%。
(2) when the indoor temperature is higher than the outdoor temperature in winter, the indoor PM2.5 concentration can be reduced to 1%~65% before the starting of the machine after opening the machine for 20 minutes. After opening the machine for 40 minutes, the indoor PM2.5 concentration can be reduced to the 3%~59% before the starting of the machine. After the starting of the machine, the PM2.5 concentration in the room can reach 1% ~49% before the start of the machine.
(3)在春季和冬季,空气净化器开机1小时,34组家庭房间实验数据中仅有1间PM2.5浓度没有降到75μg/m3以下。
(3) in the spring and winter, the air purifier was switched on for 1 hours. Only 34 PM2.5 concentrations in the 34 household household data were not reduced to 75 g/m below.
(4)空气净化器对室内空气中PM2.5的净化效果显著,开机1小时室内空气可以满足《环境空气质量标准》(GB3095-2012)限制。
(4) the air purifier has a remarkable purification effect on PM2.5 in indoor air, and the indoor air for 1 hours can satisfy the limit of "environmental air quality standard" (GB3095-2012).
(5)实验结果受到人员活动的干扰,在门的开闭瞬间,室外的PM2.5会立即进到室内,影响净化器的净化效果。所以,在使用净化器的时候,需保持门窗关闭。
(5) the experimental results are disturbed by the activity of the personnel. When the door is opened and closed, thecixuanjiw.89ix.comcixuanji.89ix.com langan.89ix.com chutieqi.89ix.comqingwujixie.89ix.comqibijiq.89ix.com outdoor PM2.5 will enter the room immediately, which will affect the purify effect of the purifier. Therefore, when using the purifier, we need to keep the doors and windows closed.
二、慎重对待高新净化产品宣传
Two, treat high and new purification products cautiously
关于纳米、光催化、稀土和净化效率高达多少等类高新技术炒作宣传,要看权威检验单位出具的净化产品的洁净空气量(CADR)等指标。净化产品的洁净空气量(CADR)低于或接近于卫生要求的房屋空气自然交换率(每人每小时新风量30立方米)的产品不具有实际使用价值,根据科学评估和经验,净化产品的洁净空气量(CADR)最好大于每小时100立方米。
The hype about nanometer, photocatalysis, rare earth and purification efficiency is high and high. It is necessary to see the clean air quantity (CADR) of the purified product issued by the authority inspection unit. The clean air volume (CADR) of the purified products is below or close to the sanitary requirement of the house. The natural exchange rate of air (30 cubic meters per hour per hour per person per hour) is not of practical use value. According to scientific assessment and experience, the clean air (CADR) of the purified product is better than 100 cubic meters per hour.
三、注意吸附材料饱和与滤料更换
Three. Pay attention to the saturation of adsorption materials and the replacement of the filter material
净化产品中净化材料的存在吸附饱和等问题,需要经常更换净化材料。
The problem of adsorption saturation exists in purifying products, so we need to replace the purifying materials frequently.
四、对气态化学污染物的净化技术较难
Four. The purification technology of gaseous chemical pollutants is rather difficult.
根据目前国内外技术水平,除净化颗粒物的空气净化产品外,市场上大多数净化气态化学污染物的产品没有实际使用价值。
According to the current technical level at home and abroad, in addition to purifying the air purification products of particulate matter, most of the products in the market have no practical value for purifying gaseous chemical pollutants.
五、选购主要参考指标
Five, select and purchase the main reference index
应根据房间容积和污染程度来选购多大的空气净化器。对于一般家庭,风量在400-600立方米/小时就足够了。
Large air purifiers should be selected according to room volume and pollution level. For ordinary families, the wind volume is 400-600 cubic meters per hour.

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