3
Recommendations
The „Technischen Regeln für Arbeitsstätten ASR A 3.6" (Technical Rules for Workplac-
es) provide the following recommendations:
3.1
CO
2
CO
-concentration in the
2
air
< 700 ppm
< 1000 ppm
> 1000 ppm
> 2000 ppm
3.2
Relative Humidity
The relative humidity in the room depends on the temperature. The following humidity
values should not be exceeded.
Air temperature
+20 °C
+22 °C
+24 °C
+26 °C
-Concentration
Recomendations
Good optimal (Display Wöhler CDL 110)
No further ventilation is needed.
Normal (Display Wöhler CDL 110)
No further ventilation is needed.
Poor (Display Wöhler CDL 110)
Ventilation is required
Improve ventilation behaviour
Ventilation is absolutely necessary!
Further ventilation measures are needed (more ventila-
tion, reduction of the number of persons in the room)
Relative Humidity
80 %
70 %
62 %
55 %
Recommendations
33
EN