Comprehensively analyze the problem of air purifiers and fresh air systems entering the campus.

　　At the end of last year, the heavily polluted air kept everyone from staying home. When it comes to smog, everyone talks about the discoloration. And in these pollution violations, the biggest impact is on children's studies. Due to the heavy air pollution, the school had to temporarily attend classes to let the children avoid the haze at home. It's causing headaches for parents. As a result, the idea that air purifiers and fresh air systems enter the campus has been widely spread. But it also says more and less. Many places cannot implement it because of their own circumstances. Today, let's comprehensively analyze the fact that air purifiers and fresh air systems enter the campus.

　　Schools are the nurturing places for talents of the motherland. is the most worthy of protection. But installing an air purification system across the campus is not as simple as buying an air purifier at home. A new national standard for how to buy air purifiers for families has been born, but schools have no relevant implementation plans. And it is unprecedented for air purifiers to be on campus. Therefore, the performance of the comparison constraints in the implementation. Unable to achieve the expected effect.

　　So, how about installing an air purifier and a fresh air system?

　　Air purifier: It can filter harmful substances such as PM2.5 and PM10, and can treat microorganisms, formaldehyde and other pollutants. But there are too many people inside. lead to an increase in carbon dioxide. In this regard, we have to think about his philosophy.

　　Fresh air system: It can replace the outdoor air and make the air circulate. Seems to solve the carbon dioxide problem. But the outdoor pollution is serious. If the fresh air system cannot complete purification, bring outdoor PM2.5 into the room. will directly affect the health of children.

　　At this point, you may think that it is better to install the air purifier and the fresh air system together. That's true. But not to mention the installation cost. Its energy consumption is not a normal figure. Let's make an assumption

　　If a school has 40 classrooms, and a classroom is installed with a fresh air system and an air purifier for two days, then it is equivalent to 40 fresh air systems and 80 air purifiers working at the same time. Coupled with the electricity consumption of other audio-visual equipment, can the school bear the entire electricity load?

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