3 ms·
> 4- indoor CO2 concentrations are typically not lower than 600ppm. Out of curiosity, just looked at my PPM monitor behind my laptop... it reads 600 :) We have
by jve 5y ago
> 4- indoor CO2 concentrations are typically not lower than 600ppm.
Out of curiosity, just looked at my PPM monitor behind my laptop... it reads 600 :) We have a good ventilation here. But humidity suffers (very low)