Datasheet

10
ENS160 Datasheet v0.95 preliminary / December 2020
The below table shows a typical classification of (equivalent) CO
2
output levels.
Table 5: Interpretation of CO
2
and Equivalent CO
2
Values
Output
Comment / Recommendation
eCO
2
/ CO
2
Rating
>1500
Bad
Heavily contaminated indoor air / Ventilation required
1000 - 1500
Poor
Contaminated indoor air / Ventilation recommended
800 - 1000
Fair
Optional ventilation
600 - 800
Good
Average
400 - 600
Excellent
Target
Example: A CO
2
- or eCO
2
-controlled ventilation application would invoke its ventilation fan
speeds 1, 2 and 3 at the upper three levels Fair, Poor Bad, respectively.
DATA_ECO2 (Address 0x24)on how to obtain equivalent CO
2
-
values from the ENS160.
5.3 AQI-UBA – Air Quality Index of the UBA
1
The AQI-UBA air quality index is derived from a guideline by the German Federal
Environmental Agency based on a TVOC sum signal. Although a local, German
recommendation, this guideline is referenced and adopted by many countries and
organizations.
Table 6: Air Quality Index of the UBA (German Federal Environmental Agency)
AQI-UBA
Hygienic Rating
Recommendation
Exposure Limit
#
Rating
5
Unhealthy
Situation
not acceptable
Use only if unavoidable
Intensified ventilation recommended
hours
4
Poor
Major objections
Intensified ventilation recommended
Search for sources
<1 month
3
Moderate
Some objections
Increased ventilation recommended
Search for sources
<12 months
2
Good
No relevant objections
Sufficient ventilation recommended
no limit
1
Excellent
No objections
Target
no limit
Recommendation according to the UBA, Bundesgesundheitsblatt  Gesundheitsforschung
Gesundheitsschutz 2007, 50:9901005, DOI 10.1007/s00103-007-0290-y © Springer Medizin
Verlag 2007
and DATA_AQI (Address 0x21) on how to obtain AQI-values from the
ENS160.
1
UBA = Umweltbundesamt  German Federal Environmental Agency