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by nathan-wailes
1083 days ago
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I'm not sure, but this CO2 issue is something I've noticed in many different situations, including just being in a car with air recirculation turned on. Once I became attuned to CO2 I started noticing its effects everywhere. It's similar to how, once I experienced my first major earthquake (Washington DC in 2011) I suddenly started noticing all of the very minor quakes that happen all the time but that most people never notice. |
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