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        开窗通风能除甲醛吗 冬天开窗通风有讲究 开窗次数并非越多越好

        寒冷的冬季,为保持室温,很多家庭常常门窗紧闭,尤其在夜晚更是如此,其实这并非良策。冬季人们在室内活动时间长,加上通风不良,室内空气污浊度高,所以冬季是呼吸道感染的高发季节。据统计,我国每年因室内空气污染导致的死亡人数为11.1万。据测定,在一个10平方米的房间里,如果门窗紧闭,有3个人在室内看书,3个小时后,房间内二氧化碳增加3倍,细菌增加2倍,灰尘增加9倍,还发现其他物质20余种。


          冬季开窗通风是提高室内空气清洁度最简单经济有效的方法。据研究观察,室外气温在8℃~10℃时,打开相当房间面积1/50的窗户通风30分钟,可使室内空气中的细菌污染率降低40%;外界温度在零下3℃~9℃时,打开同样大的通风窗通风10分钟,室内细菌污染率能降低65%。在冬季开窗通风是必须的,但也是有讲究的,开窗通风应注意次数、时间、环境和室内人员情况。

        开窗通风能除甲醛吗 冬天开窗通风有讲究 开窗次数并非越多越好

        首先开窗次数并非越多越好,因为频繁开窗会使室温降低,老人和孩子容易生病,因此,在冬天,开窗时间最好定时安排在每天的早、中、晚三个时段,一天开窗通风3次基本就能够维持室内空气的新鲜了。

        其次,房间较小、室外有风或较寒冷的情况下,开窗时间应短一些;房间较大、室外无风或较暖和的情况下开窗时间应长一些。以80平方米的房间为例,在无风或微风的条件下开窗20分钟左右就可使致病微生物减少60%。

        此外,如果室内的窗户直接面对车水马龙的马路,灰尘和污染都比较多,就需要变动一下开窗时间,应根据马路上车辆行驶数量的变化来确定,早上稍提前一些,晚上稍拖后一些,争取在车比较少的时候开窗换气;如果遇到风沙天气,最好在有纱窗的情况下,窗户开小一点,并使用加湿器、湿化喷雾,或在暖气上放一盆水,以增加空气湿度,让灰尘和微生物都沉下去。

        最后,老人和孩子最好在开窗之前加点衣服,以免开窗后因温度骤降而患病。如果有重病患者,则需慎重开窗,尽量用紫外线消毒灯来净化空气。要注意的是,室内温度不要因开窗而降到16℃以下,控制在16℃~24℃为最佳。

          

        本文由网友 君戰天 分享,文章内容系作者个人观点,不代表国学吧对观点赞同或支持

        本文链接地址:http://www.szcsjsw.com/edu/12660/52045305.html

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