{"id":15857,"date":"2026-08-25T15:23:39","date_gmt":"2026-08-25T07:23:39","guid":{"rendered":"https:\/\/www.hencolin.com\/?p=15857"},"modified":"2026-08-25T16:33:06","modified_gmt":"2026-08-25T08:33:06","slug":"a-comprehensive-guide-to-en-1822-en-779-and-mpps-understanding-air-filter-standards-classifications-and-testing-methods-at-a-glance","status":"publish","type":"post","link":"https:\/\/www.hencolin.com\/en\/air-filter-knowledge-installation-guides-hencolin\/a-comprehensive-guide-to-en-1822-en-779-and-mpps-understanding-air-filter-standards-classifications-and-testing-methods-at-a-glance\/","title":{"rendered":"A Comprehensive Guide to EN 1822, EN 779, and MPPS: Understanding Air Filter Standards, Classifications, and Testing Methods at a Glance"},"content":{"rendered":"\n
When selecting air filters, you will often see terms such as G4, F7, F9, H13, H14, EN 779, EN 1822, and MPPS on product specifications. These labels are all related to filtration performance, but they differ in terms of the types of filters they apply to, testing methods, and evaluation criteria.<\/p>\n\n\n\n
If you only compare the \u201cefficiency percentage\u201d without confirming the testing standard, test particle size, airflow rate, and pressure drop, you may end up selecting a product that does not meet the requirements of the actual equipment or cleanroom environment.<\/p>\n\n\n\n
This article explains the relationship between EN 779, EN 1822, and MPPS from a practical customer-oriented filter selection perspective. It also provides an overview of HEPA filter testing procedures, how to interpret test reports, and key considerations when purchasing air filters.<\/p>\n\n\n\n