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When it comes to air quality, it is easy to focus on PM2.5, but in fact, excess carbon dioxide is also an invisible "killer" in the air. For this statement, many consumers may be surprised, carbon dioxide is not non-toxic? How can it become a gas invisible "killer"?

1. It is known that the content of oxygen and carbon dioxide in the atmosphere is relatively stable, with oxygen accounting for 21% and carbon dioxide accounting for 0.03%. Although carbon dioxide itself is not toxic, but when the level of carbon dioxide in the air exceeds the normal level, it will have an impact on human health. So why is there a lack of oxygen when there is more carbon dioxide? Because when people breathe, they absorb oxygen and exhale carbon dioxide. With more carbon dioxide, the amount of oxygen in the air will be reduced accordingly, and people have become accustomed to the oxygen content in their living environment. When the amount of oxygen absorption is not enough, it will naturally lead to human maladjustment, causing people to breathe poorly and other symptoms of oxygen deficiency.

2.How to solve the concentration of carbon dioxide in outdoor air in the city is usually 400~500ppm. Through the indoor air quality standard, we found that the concentration of carbon dioxide in a comfortable and excellent indoor environment is better controlled below 600ppm, which is almost similar to the outdoor carbon dioxide value. Therefore, the main way to crack the problem of oxygen deficiency is to ventilate and exchange air with the outdoors and introduce fresh air. And in the new air system, using carbon dioxide sensor is important, carbon dioxide sensor can real-time online monitoring of indoor carbon dioxide concentration, and according to the concentration value to adjust the new air system to open, and power air supply volume.