Wohnzimmer: CO2 969 ppm

KW 39 2023 407 ppm ∅ 672 ppm 1150 ppm

0 ppm 200 ppm 400 ppm 600 ppm 800 ppm 1000 ppm 1200 ppm 682 599 735
KW 38 2023 KW 40 2023