I own the Aranet4 sensor (highly recommend) and I’m in the US with not particularly great sealing and my sensor will read a 600ppm jump in a matter of 30 minutes.
I basically have to keep the window in my bedroom open 24/7, even when it’s cold outside, just to keep my CO2 levels in the healthy range otherwise it will be pushing 2000ppm in the morning.
I basically have to keep the window in my bedroom open 24/7, even when it’s cold outside, just to keep my CO2 levels in the healthy range otherwise it will be pushing 2000ppm in the morning.
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