European Standard for Air Filters

Pleated Disposable Panel

EN779:2012 is the new European Standard for air filters which came into effect late in 2012. This standard replaces the old 2002 standard for classification of coarse and fine air filters

The revised standard introduces a Minimum Efficiency (ME) requirement for fine filters (F7-F9) rather than the average efficiency which was previously used to classify filters

Filters previously classified as F5 & F6 will be re-classified as M5 & M6, acknowledging that these are not truly Fine (F) filters but are Medium (M) grade

Class

Final Pressure Drop
Pa

Average arrestance (Am)
of synthetic dust %

Average efficiency (Em)
of 0,4 µm particles %

Minimum Efficiency(ME)
  for 0.4 μm particles %

G1

250

50 < Am < 65

-

-

G2

250

65 < Am < 80

-

-

G3

250

80 < Am < 90

-

-

G4

250

90 < Am

-

-

M5

450

-

40 < Em < 60

-

M6

450

-

60 < Em < 80

-

F7

450

-

80 < Em < 90

35

F8

450

-

90 < Em < 95

55

F9

450

-

95 < Em

70


Note: The characteristics of atmospheric dust vary widely compared to those of the synthetic dust used in the EN779 tests. Because of this, the test results do not provide a completely accurate basis for predicting either operational performance or service life. Loss of media charge or shedding of particles or fibres can also adversely affect efficiency.

For further questions about EN779:2012 and which air filters comply with the new standard, please contact the sales team on 01474 325666 or sales@acefiltration.co.uk

11th March 2013 Posted by admin



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