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Why does 2021 say that fresh air system will become the standard configuration of campus?
2021年07月12日 更新 | 共2190人阅读
According to the document "guidelines for health protection of air pollution (haze) population", it is suggested to install air purifiers in kindergartens, primary and secondary schools, offices, indoor fitness places and other indoor places; If possible, the central fresh air system can be used to introduce fresh air. Therefore, we can not find that to create a healthy campus environment, the popularization of fresh air system is imperative!
The classroom is a small, densely populated place, and it is also a paradise for a group of growing children to study every day. Why does indoor pollution have a greater impact on children's health? Follow Xiaobian to have a look!
1. Small lung volume
Children's metabolism is fast and active, and their respiratory capacity is larger than that of adults. However, their lung capacity is small and their respiratory center is immature, so they can only meet their growth needs by accelerating their respiratory rate. Children's normal breathing rate can reach 20-30 times per minute, and the cumulative breathing rate is about 40000 times per day, which is about 1.5 times that of adults. This means that once they encounter air pollution, they will suffer much more respiratory damage than adults.
2. Small
In the indoor environment, because children are short and much lower than adults, and some pollutants tend to deposit on the ground, so they will inhale more harmful gases. Children can not only inhale polluted air through respiratory tract, but also contact various indoor pollution sources through skin contact and cross infection.
3. Low immunity
Compared with adults, children have lower immunity and are more vulnerable to harmful substances such as air pollution or viruses and bacteria.
Xiao Bian believes that sufficient fresh air can ensure the healthy growth of students, and can ensure the quality of students' lectures. In the classroom with insufficient ventilation, students' attention will be difficult to concentrate due to lack of oxygen, and even have symptoms such as irritability and headache. Therefore, the construction of campus fresh air must be paid attention to.
And the fresh air system can increase the indoor oxygen content and fresh air volume, improve the classroom carbon dioxide concentration and fresh air volume two major air quality problems!
The classroom is a small, densely populated place, and it is also a paradise for a group of growing children to study every day. Why does indoor pollution have a greater impact on children's health? Follow Xiaobian to have a look!
1. Small lung volume
Children's metabolism is fast and active, and their respiratory capacity is larger than that of adults. However, their lung capacity is small and their respiratory center is immature, so they can only meet their growth needs by accelerating their respiratory rate. Children's normal breathing rate can reach 20-30 times per minute, and the cumulative breathing rate is about 40000 times per day, which is about 1.5 times that of adults. This means that once they encounter air pollution, they will suffer much more respiratory damage than adults.
2. Small
In the indoor environment, because children are short and much lower than adults, and some pollutants tend to deposit on the ground, so they will inhale more harmful gases. Children can not only inhale polluted air through respiratory tract, but also contact various indoor pollution sources through skin contact and cross infection.
3. Low immunity
Compared with adults, children have lower immunity and are more vulnerable to harmful substances such as air pollution or viruses and bacteria.
Xiao Bian believes that sufficient fresh air can ensure the healthy growth of students, and can ensure the quality of students' lectures. In the classroom with insufficient ventilation, students' attention will be difficult to concentrate due to lack of oxygen, and even have symptoms such as irritability and headache. Therefore, the construction of campus fresh air must be paid attention to.
And the fresh air system can increase the indoor oxygen content and fresh air volume, improve the classroom carbon dioxide concentration and fresh air volume two major air quality problems!