What is the ideal CO2 concentration for optimal human performance?

In summary, the optimal CO2 concentration for maintaining baseline performance among humans is below 5%, according to some peer-reviewed scientific literature. However, the acceptable absolute level of CO2 can vary between 400-800 ppm, with building codes requiring indoor levels to be within 600 ppm of ambient levels. The conversation also mentions potential solutions for maintaining tolerable CO2 concentrations, such as improved ventilation and introducing plants to classrooms. The individual asking for help has noticed that their high school has periodically shut down or required increased ventilation due to high CO2 levels.
  • #1
jgens
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What is an optimal CO2 concentration (a range of values or percentages) for maintaining baseline performance among humans? For example, short term exposure to CO2 concentrations less than 5% has negligible impacts on performance (I don't think this is true, it's just an example). If anyone happens to know any peer reviewed scientific literature regarding this topic it would be much appreciated.

As an aside, my high school often has trouble maintaining tolerable concentrations (concentrations which have a negligible impact on performance) of CO2. I would like to attempt to find ways to perhaps maintain tolerable CO2 concentrations through improved ventilation, introduction of plants to classrooms, etc.

Any help is greatly appreciated. Thanks!
 
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  • #2
Ventilation for maintaining indoor air quality is required by building codes.

How do you know your high school has too high a CO2 concentration?

CO2 is a bad thing to have in any concentration, but ambient levels range from 400-800 ppm. Codes require keeping the indoor level within 600 pmm of ambient. There is a variety of differening interpretations of what is acceptable as an absolute level, starting with about 2000 ppm. Google gives lots of results. Here's the Wiki: http://en.wikipedia.org/wiki/Indoor_air_quality#Carbon_dioxide
 
  • #3
Thanks for the link!

I know the CO2 concentration inside the school has been too high because various wings of the building are periodically shut down or require increased ventilation (such as opening windows in the middle of Winter).
 

FAQ: What is the ideal CO2 concentration for optimal human performance?

How does an increase in CO2 affect performance?

An increase in CO2 levels can decrease performance by reducing the amount of oxygen available for the body to use. This can lead to fatigue, reduced energy, and decreased physical and mental performance.

Can CO2 levels affect cognitive performance?

Yes, high levels of CO2 can affect cognitive performance by causing headaches, dizziness, and decreased concentration and decision-making abilities. This is commonly seen in poorly ventilated indoor spaces with high levels of CO2.

Does CO2 affect athletic performance?

Yes, high levels of CO2 can have a negative impact on athletic performance. The reduced oxygen availability can cause athletes to fatigue more quickly, leading to decreased endurance and overall performance.

How does CO2 affect overall health and well-being?

High levels of CO2 can have negative effects on overall health and well-being. Aside from the physical impacts on performance, prolonged exposure to high levels of CO2 can lead to respiratory issues, headaches, and fatigue.

Can CO2 levels affect productivity in the workplace?

Yes, high levels of CO2 can negatively affect productivity in the workplace. The decreased oxygen availability and resulting fatigue and decreased concentration can lead to decreased efficiency and performance in tasks.

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