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AIR QUALITY IN CLEAN ROOMS

AIR QUALITY IN CLEAN ROOMS - Segù Engineering Division
The air conditioning system and the processes of filtration and air distribution play an important part, of maintaining the correct values ​​of purity and wholesomeness of the air in clean rooms.
The air is filtered and treated adequately to meet the demands of temperature and humidity, and should be introduced with care to avoid stagnant where contaminants may accumulate, thereby increasing the microbial environment.
The plant must also ensure the right level of positive pressurization, thus avoiding possible contamination from outside.
The air flow rate usually varies depending on the requirements of purity, reducing when the requirement for cleaning is reduced.
The design of a clean room requires a special study of the filtration and distribution in relation to levels of air purity requirements.
Our company designs and manufactures air handling systems for clean rooms, for further information please contact us.

Classification
Maximum concentration of particles/m³  with the same size or langer than those indicated in the table
 
ISO (N)
F.S.209 D
0,1 µm
0,2 µm
0,3 µm
0,5 µm
1 µm
5 µm
ISO 1
 
10
2
 
 
 
 
ISO 2
 
100
24
10
4
 
 
ISO 3
Classe 1
1.000
237
102
35
8
 
ISO 4
Classe 10
10.000
2.370
1.020
352
83
 
ISO 5
Classe 100
100.000
23.700
10.200
3.520
832
29
ISO 6
Classe 1.000
1.000.000
237.000
102.000
35.200
8.320
293
ISO 7
Classe 10.000
 
 
 
352.000
83.200
2.930
ISO 8
Classe 100.000
 
 
 
3.520.000
832.000
29.300
ISO 9
 
 
 
 
35.200.000
8.320.000
293.000