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Comment by derefr

Is there any practical way to have less indoor CO2 than outdoor CO2, without needing to buy expensive single-use scrubber chemicals? Maybe presuming you live somewhere with cheap electricity and/or a cheap fresh water supply?

Basically I’m asking whether there’s a Maxwell’s Daemon-like device for separating the CO2 from the air, and venting the CO2 back outside, while bringing in the rest of the air. Like a CO2 scrubber, but without any need for CO2 sequestration, since you exist inside an open system instead of in a space station/bunker/submarine.

parent derefr 6 years ago

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