How many co2 detectors do i need?
Our human body is actually very sensitive to the increase of carbon dioxide in the air. In a normal ventilation environment, the carbon dioxide content in the air is about 400ppm, which is acceptable to the human body. When it rises to about 1000PPm, we will become drowsy, our concentration will decrease, and our work efficiency will decrease. and learning progress will be greatly reduced, and any increase may cause adverse health effects on the human body. Therefore, indoor environmental CO2 concentration monitoring is very important.
How many co2 detectors do i need?
So many users will ask How many co2 detectors do i need? How many CO2 sensors should be installed in what environment? The size of the space is definitely one aspect, but it cannot completely determine how many sensors to install. Air circulation and diffusion factors must also be considered. For example, in the same open shopping mall, the results of different measurement points in the open space will be very different. The specific installation must be combined with the flow and diffusion of gas in the space. The sensor is to measure the carbon dioxide concentration in the space. You can imagine a closed space where the gas does not flow. When you open the door and enter, how long does it take for the outside air to fully diffuse in? ? We definitely need to consider the size of the door and the different concentrations of gas composition outside versus inside.
We cannot simply quantify. We only want to use simple “quantification” to determine the number of sensors to install, which may not even have reference value. Because that’s just experimental data using a fixed space to create a fixed air flow rate. Let’s take another example, let’s take a shopping mall as an example. In addition to the influencing factors mentioned above, there are other variables, such as the flow of people. The game area may be more crowded, the bookstore may be less crowded, the flow of people is large during the day, and the flow of people at night is Small, the flow of people is large on holidays, and the flow of people will be much less than that on weekdays. Therefore, setting points and numbers must take into account the above factors. Of course, if the space is about the same size, such as logistics window storage, it will be much simpler.
Under normal circumstances, if there is no fresh air system in the room and the environment is not well circulated, such as school classrooms, we recommend installing at least 3 in a space of 100-150 square meters, and 1-2 in a space of 50 square meters. Where should co2 sensors be located ? The installation points can be located farther apart.
Carbon dioxide concentration standard:
The human body is very sensitive to the increase in the concentration of carbon dioxide in the air. Every time the carbon dioxide content increases by 0.5%, the human body will have a significant sensation. The following are the effects of different CO2 concentration scales on the human body:
1.When the carbon dioxide concentration reaches 1% (1000ppm), people will feel depressed, have difficulty concentrating and have palpitations. If the carbon dioxide concentration reaches 1000ppm in a closed bedroom, it is often difficult to have a good night’s rest. If the carbon dioxide content in the office air reaches 1000ppm, employees’ work efficiency will decrease.
2.When the carbon dioxide concentration reaches 1500-2000 PPM, people will feel asthma, headache and dizziness. When two people sleep in a closed bedroom overnight, the concentration of carbon dioxide can easily reach 2,000 ppm. When the carbon dioxide concentration in office air reaches 2,000 ppm, employees will feel sleepy, distracted and exhausted. After exceeding 2000PPM, we don’t even want to continue working, and our thinking ability drops significantly.
3.When the concentration exceeds 5000PPM, human body functions are seriously disrupted, causing people to lose consciousness and feeling.
Many large factories, especially those that produce chemicals, need to pay more attention to the factory’s carbon dioxide emissions. Carbon dioxide detectors can be used to measure the concentration of carbon dioxide in the air. Once the concentration exceeds the alarm value set by the carbon dioxide detector, an alarm will sound to remind relevant workers to take a series of measures to avoid tragedy.