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קונטרוטק טכנולוגיות בקרה
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Guidelines for
a healthy indoor
climate
The monitoring of important indoor air parameters
helps to minimize the risk of infection with viruses or
bacteria and to increase well-being and concentration.
Recommendation: 1000 1500 Carbon dioxide – CO2 (ppm)
800 - 1200 ppm 500 2000 If the value rises above 1000 ppm (parts per million), the air
Optimum: 800 ppm is used up and enriched with aerosols. The result: fatigue
Maximum: 1400 ppm 0 2500 and a loss of concentration together with a rise in the risk of
infection. CO2 is an indicator to determine the time and dura-
40 50 60 CO2 [ppm] tion for optimal ventilation.
30 70
20 80 Recommendation: Relative air humidity – %RH
10 90 40 - 60 % 40 – 60 %RH is the ideal value for healthy indoor air. Air that
Winter: 30 % is too dry aids the spread and survival of viruses in airborne
0 100 Summer: 60 % droplets (aerosols) and their absorption through the nasal
mucous membrane.
rF [%]
20 30 Temperature – °C
Recommendation: 10 40 A temperature between 22 and 24 °C is ideal in work rooms
22 - 24 °C (conference rooms, offices, classrooms, etc.). Rooms that are
Winter: 21 °C 0 50 too hot reduce the relative humidity and affect the productivi-
Summer: 26 °C ty of the people in them.
T [°C]
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