Inthepharmaceuticalindustry,HEPAfiltersareusedasterminalfiltersfortheprocessingorfiltrationofairinproductionspaces.Theyaremandatoryinsterileproduction,althoughtheyaresometimesalsousedinthemanufactureofsolidorsemisoliddosageforms.AmongsttheHEPAorhigh-efficiencyparticulateairfiltersareFilterClassesH13toH14(DIN),thelatterwitharetentionrateof99.%.Buthowoftendotheyneedtobechanged?

在制药行业，高效过滤器（HEPA）用于生产空间空气的处理和过滤的终端过滤器。无菌生产要求强制使用高效过滤器，而固体和半固体剂型的生产有时也会使用。H13至H14（DIN）是高效过滤器的两种，后者截留率为99.%。但多久必须更换一次呢？

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