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
20006excellentexcellent11excellent
19005excellentexcellent11excellent
18004excellentexcellent11excellent
17004excellentexcellent11excellent
16004excellentexcellent11excellent
15002excellentexcellent11excellent
14002excellentexcellent11excellent
13004excellentexcellent11excellent
12002excellentexcellent11excellent
11003excellentexcellent11excellent
10002excellentexcellent11excellent
09004excellentexcellent11excellent
08006excellentexcellent11excellent
07008excellentexcellent11excellent
06008excellentexcellent11excellent
05006excellentexcellent11excellent
04005excellentexcellent11excellent
03004excellentexcellent11excellent
02004excellentexcellent11excellent
01003excellentexcellent11excellent
00003excellentexcellent11excellent
23005excellentexcellent11excellent
22005excellentexcellent11excellent
21005excellentexcellent11excellent