Where fitted, HEPA filters should be of the 3.53 HEPA filters are sometimes used in extract 3.54 replaceable-panel type with leak-proof seals. systems for the containment of hazardous Their installation should permit the validation of substances or the filter and its housing.
3.53 Where fitted, HEPA filters should be of the replaceable-panel type with leak-proof seals. Their installation should permit the validation of the filter and its housing. 3.54 HEPA filters are sometimes used in extract systems for the containment of hazardous substances or