Human activities can lead to an increase in indoor carbon dioxide concentrations, and if the environment is poorly ventilated, the carbon dioxide produced by our breathing will accumulate indoors. Moreover, the airtightness of modern buildings also indirectly leads to an increase in carbon dioxide.
High CO2 concentrations can harm human health and productivity. Studies have shown that when the concentration of carbon dioxide in the air is less than 2%, there is no obvious harm to people, and more than this concentration can cause damage to human respiratory organs, that is, in general, carbon dioxide is not a toxic substance, but when the concentration of carbon dioxide in the air exceeds a certain limit, it will cause poisoning of the body, and high concentrations of carbon dioxide will suffocate.
The Impact of CO2 on Human Decision Performance (Image Source Network)
Air exchangers and smart ventilation systems in the commercial and residential sectors use CO2 sensors to regulate ventilation systems in the most energy-efficient and user-friendly way. In addition, carbon dioxide sensors can also be integrated into air purifiers, smart thermostats, fresh air conditioners and other smart home exhibits to monitor air quality in real time and make decisions without relying on human perception.
Among the common carbon dioxide detection methods, NDIR infrared absorption method is an ideal way to monitor the carbon dioxide content in the air. Carbon dioxide has an absorption peak in the 4.3μm infrared region, and at this wavelength, oxygen, nitrogen, carbon monoxide, and water vapor are not significantly absorbed, so this method is not susceptible to cross-interference with other gases and has good selectivity.
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The MH-Z19 series carbon dioxide gas sensor independently developed and produced by Weisheng Technology is a general intelligent small sensor, which uses the principle of non-dispersive infrared (NDIR) to detect carbon dioxide in the air, with good selectivity, no oxygen dependence and long life. Built-in temperature compensation, serial output, PWM output, can be widely used in fresh air system, air purification equipment, air quality monitoring equipment, smart home, HVAC equipment and other fields.
The proposal of the "dual carbon goal" has made carbon dioxide emissions pay more and more attention, and carbon dioxide has become a key monitoring air pollutant in industrial production, agricultural breeding, indoor environment and other fields.
Infrared carbon dioxide sensor is one of the most popular sensors in the market, whether it is civil, commercial or industrial, there are applicable products to choose from, if you have related needs, please contact Dasheng for information~