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Written by blinry on 2025-02-02 at 11:33

I brought my CO2 sensor prototype to #FOSDEM!

In K.3.401 (a tightly-packed dev room with closed windows), I measured a CO2 concentration of over 3000 ppm.

For reference: Outside air is currently ~420 ppm, and a common suggestion is to ventilate rooms to <= 1000 ppm.

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Written by David Bremner on 2025-02-02 at 11:35

@blinry people have been posting pics of ARANET 4's displaying around 2800 ppm, so it sounds consistent with your measurement.

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