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Or anything to back up that air with a higher proportion of CO2 is "worse" than air filled with tobacco smoke?

• xfitm3 5y ago
  Commercial buildings have CO2 sensors and minimum fresh air requirements. High levels of CO2 do cause problems for humans. Here you go: https://www.fsis.usda.gov/sites/default/files/media_file/2020-08/Carbon-Dioxide.pdf https://www.fsis.usda.gov/sites/default/files/media_file/202... http://www.energy.wsu.edu/documents/co2inbuildings.pdf http://www.energy.wsu.edu/documents/co2inbuildings.pdf
  • mrosett 5y ago
    Those links don't actually address the point I was making: High CO2 levels may be bad, but it's a huge leap to go from there to saying that the air was better when it had cigarette smoke. For that matter, both of your links say that CO2 levels below 5,000 ppm have no ill health effects other than perhaps drowsiness. And it looks like planes cabins are usually about 1,000-1,500 ppm -- elevated, but again, not clearly worse than having cigarette smoke in the air.
    • ReGenGen 5y ago
      High CO2 levels is not only a problematic itself but an indicator of poor air circulation. You are breathing in other's expelled air. Catching/ spreading a virus like SARS‑CoV‑2, flu measles is an obvious "ill health" effect.
    • throwawayswede 5y ago
      Pre smoking ban, regulation required airlines to change air more regularly (every 3 minutes I believe). Now they change it with half-new half-reused air. From the article: > They don't change the air as regularly, as it costs money to bring fresh subzero air in from outside and heat it to cabin temperature. By the time you reach your destination the percentage of carbon dioxide in the cabin from breathing is much higher than it should be.