Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
15004excellentexcellent11excellent
14005excellentexcellent11excellent
13005excellentexcellent11excellent
12004excellentexcellent11excellent
11005excellentexcellent11excellent
10009excellentexcellent11excellent
09007excellentexcellent11excellent
08008excellentexcellent11excellent
07009excellentexcellent11excellent
060011excellentexcellent11excellent
05008excellentexcellent11excellent
04009excellentexcellent11excellent
03008excellentexcellent11excellent
02008excellentexcellent11excellent
01006excellentexcellent11excellent
00004excellentexcellent11excellent
23004excellentexcellent11excellent
22004excellentexcellent11excellent
21004excellentexcellent11excellent
20003excellentexcellent11excellent
19003excellentexcellent11excellent
18003excellentexcellent11excellent
17003excellentexcellent11excellent
16002excellentexcellent11excellent