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 GROUND ROOF (BEFORE FILTERS)  ROOF (AFTER FILTERS)
060079lightly pollutedexcellent81excellent
050072lightly pollutedexcellent81excellent
040074lightly pollutedexcellent91excellent
030088lightly pollutedexcellent111excellent
020097lightly pollutedexcellent131excellent
0100118moderately pollutedexcellent162excellent
0000125moderately pollutedexcellent171excellent
2300109moderately pollutedexcellent181excellent
2200137moderately pollutedgood231excellent
2100147heavily pollutedexcellent161excellent
2000143heavily pollutedexcellent171excellent
1900170heavily pollutedexcellent201excellent
1800156heavily pollutedexcellent161excellent
1700131moderately pollutedexcellent141excellent
1600114moderately pollutedexcellent131excellent
1500111moderately pollutedexcellent121excellent
1400102moderately pollutedexcellent111excellent
130090lightly pollutedexcellent91excellent
120094lightly pollutedexcellent101excellent
1100107moderately pollutedexcellent141excellent
1000179heavily pollutedgood211excellent
0900210severely pollutedgood241excellent
0800188heavily pollutedgood211excellent
0700183heavily pollutedexcellent191excellent