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
11002excellentexcellent11excellent
10003excellentexcellent11excellent
09004excellentexcellent11excellent
08005excellentexcellent11excellent
07005excellentexcellent11excellent
060012excellentexcellent21excellent
05008excellentexcellent21excellent
040011excellentexcellent11excellent
030011excellentexcellent21excellent
020013goodexcellent21excellent
010015goodexcellent21excellent
000014goodexcellent21excellent
230011excellentexcellent11excellent
22007excellentexcellent11excellent
21005excellentexcellent11excellent
20006excellentexcellent11excellent
19003excellentexcellent11excellent
18002excellentexcellent11excellent
17002excellentexcellent11excellent
160012excellentexcellent11excellent
15004excellentexcellent11excellent
140018goodexcellent11excellent
130010excellentexcellent11excellent
12004excellentexcellent11excellent