All clean air and containment industries require testing of HEPA filter systems that protect people, products, and the environment. HEPA filter leak testing must be conducted properly.
The Recommended Practice (RP), IEST-RP-CC034, defines procedures for leak-testing HEPA and ULPA filters during production, pre-installation, and post-installation in cleanrooms and unidirectional-flow devices. Although HEPA filter leak testing seems simple on paper, practical considerations are needed to ensure valid test results.