Air quality index [µg/m3]:
excellent ≤ 20
good ≤ 60
lightly polluted ≤ 100
moderately polluted ≤ 140
heavily polluted ≤ 200
severely polluted > 200
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
050013excellentexcellent21excellent
040014excellentexcellent21excellent
030085lightly pollutedexcellent21excellent
020014excellentexcellent21excellent
010014excellentexcellent21excellent
000011excellentexcellent11excellent
23009excellentexcellent11excellent
220010excellentexcellent11excellent
21009excellentexcellent11excellent
20006excellentexcellent11excellent
19009excellentexcellent21excellent
180011excellentexcellent21excellent
17009excellentexcellent21excellent
160010excellentexcellent11excellent
15008excellentexcellent11excellent
14008excellentexcellent11excellent
13006excellentexcellent11excellent
12007excellentexcellent11excellent
11005excellentexcellent11excellent
100010excellentexcellent21excellent
090015excellentexcellent21excellent
080020excellentexcellent31excellent
070023goodexcellent31excellent
060020excellentexcellent31excellent