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Test ports, aerosol injection ports, and balancing dampers can make cleanroom certification and testing easier by allowing measurement of pressure drop and injection of challenge medium for HEPA filter leak testing from the room side. Prefilters and final filters should be installed before HEPA filters to protect and extend their life, with prefilters having a MERV rating of at least 8 and final filters a MERV rating of at least 13. Filter selection and sizing the air handling equipment to account for each

Author

king

Language

EN