>Having CO2 sensors is mostly useless I got one because old apartment and bad ventilation. Was able to open a window when I felt the effect before, but now I c

>Having CO2 sensors is mostly useless I got one because old apartment and bad ventilation. Was able to open a window when I felt the effect before, but now I can get an alert earlier. Since getting it I could consistently feel the effect at around 11100-1300.