Building the Pocket CO2 Project

Re:Building the Pocket CO2 Project by voxelghost on Wednesday April 26, 2023 @09:20PM (#35722086)

So some perspective;

    * 10,000 years ago, the average atmospheric CO2 was about 280ppm.
    * In 2022, the average atmospheric CO2 was about 420ppm.
    * OPs baseline indoor CO2 is 700-800ppm.
    * For a brief time when cooking, OPs indoor CO2 is 3000ppm

700-3000ppm CO2 would be catastrophic for the climate if it was the average atmospheric level (but fortunately we haven't messed up this bad yet)

But when it comes to the effect on the body, and I am not a medical professional of any kind, but normally exhaled air contains about 4.5 percent CO2 ( or 45,000ppm), so while breathing in air with 3,000ppm or 0.3% CO2 probably isn't optimal for us - our lungs are constantly dealing with much higher concentrations. So nervous shallow-breathing worrying about CO2 levels of your home probably has a similar effect to OPs cooking. ¯\_(ツ)_/¯

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Re:Building the Pocket CO2 Project by ourlordcaffeine on Thursday April 27, 2023 @06:42AM (#35726065)

Levels above 1000ppm are shown to cause cognitive impairment. 3000ppm is absolutely harmful.

>our lungs are constantly dealing with much higher concentrations

After gas exchange. Not with inhaled air.

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Re:Building the Pocket CO2 Project by voxelghost on Thursday April 27, 2023 @08:19PM (#35736116)

>After gas exchange. Not with inhaled air.

gas exchange is continuous, not a discrete event that only takes place just after fresh air enters the lungs.

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Re:Building the Pocket CO2 Project by londons_explore on Thursday April 27, 2023 @07:15AM (#35726328)

Sitting next to someone exhaling 45,000 ppm air and breathing in, if you breathe in perhaps 5% of what they breathe out, you are still breathing in air at 2,400 ppm...

Is sitting next to someone bad for health?

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