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教室是青少年、儿童在校学习的主要场所。教室内空气质量的好坏,直接影响他们的学习和身体健康。二氧化碳含量多少,是衡量教室内空气污染程度的重要标志。据有关资料介绍,室内空气中二氧化碳含量超过1‰,对于人们的身体是有害的,如久居其中就会感到不舒服;若是二氧化碳含量达到20‰以上,人们就会感到头晕、头痛、脉缓、血压升高、四肢无力,甚至会出现心脏活动及呼吸运动衰弱等症状;如果二氧化碳浓度达到100‰以上,就可能使人呼吸麻痹而死亡。
Classrooms are the main venue for teenagers and children to learn at school. Teaching indoor air quality is good or bad, a direct impact on their learning and physical health. How much carbon dioxide is a measure of classroom air pollution is an important indicator of the degree. According to relevant information, the indoor air carbon dioxide content of more than 1 ‰, is harmful to people’s body, such as living in which will feel uncomfortable; if the carbon dioxide content of 20 ‰ or more, people will feel dizzy, headache, pulse slow, High blood pressure, weakness in the extremities, and even heart conditions and respiratory symptoms such as weakness; if the carbon dioxide concentration reaches 100 ‰ or more, it may cause paralysis and death of people.