These number are a bit misleading. These measures in contained environments are to indicate a low O2 condition. The Humans convert O2 to CO2. CO2 scrubbers are used to sequester the carbon and release the O2 back into the closed system. Alarms are set off on high CO2 concentrations because they indicate a low O2 condition. CO2 is an inert gas. CO2 is not dangerous even in high concentrations. Atmospheric CO2 concentrations are a completely different system. Human respiration is so insignificant to the carbon cycle as to not even matter. Increased CO2 levels in the atmosphere only serve to increase the carbon cycle. It is a global lie designed to erode national sovereignty and usher in a one world government. A world government where you will not get to vote.
There’s little danger to humans of too much CO2 in the air they breathe. Even the Environmental Protection Agency says 1000 ppm is the safe limit for lifetime human exposure. Space shuttle CO2 alarms are set at 5,000 ppm, and the alarm in nuclear subs is set at 8,000 ppm. Today it's about 400 ppm.
(wattsupwiththat.com)
These number are a bit misleading. These measures in contained environments are to indicate a low O2 condition. The [air is around 20% O2 and .04% CO2.](https://earthhow.com/earth-atmosphere-composition/) Humans convert O2 to CO2. CO2 scrubbers are used to sequester the carbon and release the O2 back into the closed system. Alarms are set off on high CO2 concentrations because they indicate a low O2 condition. CO2 is an inert gas. CO2 is not dangerous even in high concentrations. Atmospheric CO2 concentrations are a completely different system. Human respiration is so insignificant to the carbon cycle as to not even matter. Increased CO2 levels in the atmosphere only serve to increase the carbon cycle. [Every claim of environmental damage by CO is unproven theory.](https://skepticalscience.com/human-co2-smaller-than-natural-emissions.htm) It is a global lie designed to erode national sovereignty and usher in a one world government. A world government where you will not get to vote.
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