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
14004excellentexcellent11excellent
13003excellentexcellent11excellent
12002excellentexcellent11excellent
110011excellentexcellent11excellent
100012excellentexcellent11excellent
09006excellentexcellent11excellent
08007excellentexcellent21excellent
070011excellentexcellent21excellent
06008excellentexcellent11excellent
05008excellentexcellent11excellent
04008excellentexcellent11excellent
030010excellentexcellent11excellent
020013goodexcellent21excellent
010013goodexcellent21excellent
000011excellentexcellent21excellent
230014goodexcellent11excellent
220013goodexcellent11excellent
21006excellentexcellent11excellent
20008excellentexcellent11excellent
19004excellentexcellent11excellent
18002excellentexcellent11excellent
17002excellentexcellent11excellent
16004excellentexcellent11excellent
15002excellentexcellent11excellent