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Classification of filtration grade of air filter

Time : 2023-06-28 Hits : 5

1、 Classification of filtration grade of air filter

Chinese national standard grade: primary efficiency filter, medium efficiency filter, high and medium efficiency filter, sub high efficiency filter and high efficiency filter.

Corresponding European standard grades: (initial effect) G1, G2, G3, (medium effect) G4, F5, high effect (F6, F7, F8, F9), (sub high efficiency) H10, H11, (high efficiency) H12, H13, h14

Filter gradeCorresponding to American StandardFiltering accuracyFiltration efficiency
G1(EN779)C1≥5μm40%
G2(EN779)C2-C4≥5μm70%
G3(EN779)L5≥5μm85%
G4(EN779)L6≥5μm90%
F5(EN779)M9、M101-10μm35%
F6(EN779)M11、M121-10μm45%
F7(EN779)H131-10μm65%
F8(EN779)H141-10μm85%
F9(EN779)H151-10μm95%
H10(EN18822)H15≥0.3μm90%
H11(EN18822)H16≥0.3μm99%
H12(EN18822)H16≥0.3μm99.9%
H13(EN18822)H17≥0.3μm99.99%

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