Comparison Of Filter Classes According EN 779, EN 1822 And ...

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Comparison of Filter Classes

Various filtration standards are compared below. Although some of these standards build on one another and are coordinated with one another. Due to the different test conditions, a comparison of the filter classes is only possible approximately! Our Team will be happy to support you in selecting suitable Air filter!

Which filter classes would you like to compare?

ASHRAE 52.2.2007 vs. EN 779 & EN 1822 ISO 16890 vs. EN 772 ISO 29463 vs. EN 1822 ISO 29461 vs. ISO 29463 & ISO 16890

Comparison of filter classes according EN 779, EN 1822 and ASHRAE 52.2.

EN 779:2012 EN 779:2012 EN 1822:2009 ASHRAE‑Standard 52.2-2007
Coarse Filters Average Arrestance (Am) Final Test Pressure Drop 250 [Pa] Medium- and Fine Filters Average Efficiency (Em) and Minimum Efficiency(M.E.) of 0.4 µm particles Final Test Pressure Drop 450 [Pa] (H)EPA- and ULPA-Filters Efficiency Minimum Efficiency Reporting Value (MERV)
50% ≤ Am < 65%G1 MERV 1-4
65% ≤ Am < 80%G2 MERV 1-4
80% ≤ Am < 90%G3 MERV 5
90% ≤ AmG4 MERV 6-8
40% ≤ Em < 60%M5 MERV 8-10
60% ≤ Em < 80%M6 MERV 9-13
80% ≤ Em < 90%M.E.: 35%F7 MERV 13-14
90% ≤ Em < 95%M.E.: 55%F8 MERV 14-15
95% ≤ EmM.E.: 70%F9 MERV 16
Overall Value ≥ 85%E10 MERV 16
Overall Value ≥ 95%E11 MERV 16
Overall Value ≥ 99.5%E12
Overall Value ≥ 99.95%H13Local Value ≥ 99.75%
Overall Value ≥ 99.995%H14Local Value ≥ 99.975%
Overall Value ≥ 99.9995%U15Local Value ≥ 99.9975%
Overall Value ≥ 99.99995%U16Local Value ≥ 99.99975%
Overall Value ≥ 99.999995%U17Local Value ≥ 99.9999%

Comparison of filter classes according to EN 779 and ISO 16890

EN 779:2012 ISO 16890 - Average Efficiency
Filter Classes ePM1 ePM2,5 ePM10 Coarse
G1 - - - -
G2 - - - 30%-50%
G3 - - - 45%-65%
G4 - - - 60%-85%
M5 5%-35% 10%-45% 40%-70% 80%-95%
M6 10%-40% 20%-50% 60%-80% >90%
F7 40%-65% 65%-75% 80%-90% >95%
F8 65%-90% 75%-95% 90%-100% >95%
F9 80%-90% 85%-95% 90%-100% >95%

References:

- VDMA Air Filter Information (2018-06) page 6 for filter classes G1 - G4 respectively ISO Coarse

- EUROVENT 4/23:2020, page 18 / 9. Annex for filter classes M5 - F9 respectively ePM2,5 und ePM1 ≥ 50 % ISO T8 ≥ 70 % ISO T9 ≥ 85 % ISO T10 EPA ≥ 85 % ISO T11 ≥ 95 % ISO T12 ≥ 99,5 % ISO T13 HEPA ≥ 99,95 % Learn more about ISO 29461 Back to overview

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