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
21005excellentexcellent11excellent
20004excellentexcellent11excellent
19003excellentexcellent11excellent
18003excellentexcellent11excellent
17003excellentexcellent11excellent
16002excellentexcellent11excellent
15002excellentexcellent11excellent
14002excellentexcellent11excellent
13002excellentexcellent11excellent
12003excellentexcellent11excellent
11004excellentexcellent11excellent
10004excellentexcellent11excellent
09008excellentexcellent21excellent
08009excellentexcellent11excellent
07005excellentexcellent11excellent
06005excellentexcellent11excellent
05006excellentexcellent11excellent
04008excellentexcellent21excellent
030015goodexcellent21excellent
020013goodexcellent21excellent
010011excellentexcellent21excellent
000010excellentexcellent21excellent
23009excellentexcellent21excellent
22009excellentexcellent21excellent