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Frequently Asked Question - Cleanroom Section
 



Learn About Deadly Cancer Mesothelioma due to Asbestos Exposure, it can affect any one in the world




   Frequently Asked Questions in Cleanroom Construction and Maintenance   Cleanroom Air Classification as per WHO 2002

Grade
Maximum Number Permitted / M3
Particles
Microorganisms
0.5µm
5.0µm
A (LAF)
3,500
0
<1
B
3,500
0
5
C
3,50,000
2,000
100
D
3,500,000
20,000
500

Note
Grade A and B correspond to with class 100, M 3.5, ISO 5
Grade C correspond to with class 10000, M 5.5, ISO 7
Grade D correspond to with class 100000, M 6.5, ISO 8