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
060010excellentexcellent21excellent
05009excellentexcellent11excellent
04007excellentexcellent11excellent
030012excellentexcellent11excellent
020010excellentexcellent11excellent
01008excellentexcellent11excellent
00009excellentexcellent11excellent
230010excellentexcellent11excellent
22008excellentexcellent11excellent
21006excellentexcellent11excellent
20006excellentexcellent11excellent
19005excellentexcellent11excellent
18005excellentexcellent11excellent
17007excellentexcellent11excellent
16007excellentexcellent11excellent
15009excellentexcellent21excellent
140011excellentexcellent21excellent
130015goodexcellent21excellent
12009excellentexcellent21excellent
110023goodexcellent11excellent
10009excellentexcellent21excellent
09009excellentexcellent11excellent
08009excellentexcellent21excellent
07008excellentexcellent11excellent