Page 15 - Viledon - Air and Liquid Filtration

ISO 29463 Filter classes – ISO 15 E ISO 25 E ISO 35 H ISO 45 H ISO 55 U ISO 65 U ISO 75 U

≤ 0.25 ≤ 0.025
– – – ≤ 0.0025 ≤ 0.00025 ≤ 0.0001
in the MPPS in %
Local value of penetration

– – – ≥ 99.75 ≥ 99.975 ≥ 99.9975 ≥ 99.99975 ≥ 99.9999
in the MPPS in %
EPA, HEPA and ULPA EN 1822:2009 (Parts 1 to 5) Evaluation of filter performance at nominal air flow the MPPS in % Integral value of penetration in in the MPPS in % ≤ 15 ≤ 5 ≤ 0.5 ≤ 0.05 ≤ 0.005 ≤ 0.0005 ≤ 0.00005 ≤ 0.000005
Local value of efficiency

≥ 95
≥ 85
Integral value of efficiency

DEHS ≥ 99.5 (Di-Ethyl- ≥ 99.95 Hexyl- Sebacate) ≥ 99.995 MPPS 0.1–0.3 μm ≥ 99.9995 ≥ 99.99995 ≥ 99.999995
Test aerosol

E 10 E 11 E 12 H 13 H 14 U 15 U 16 U 17
Filter classes

– – – – – – 35 55 70
particles 0.4 microns in %
Minimum efficiency for
40 ≤ E m < 60 60 ≤ E m < 80 80 ≤ E m < 90 90 ≤ E m < 95 95 ≤ E m

particles of 0.4 microns in %
Particulate air filters for general ventilation EN 779:2012 evaluation of filter performance at 0.944 m 3 / s (or nominal air flow) m compared with test dust in % Average arrestance (A ) Final pressure drop in Pa 50 ≤ A m < 65 250 65 ≤ A m < 80 250 80 ≤ A m < 90 250 90 ≤ A m 250 – 450 – 450 – 450 – 450 – 450 EPA: Efficient Particulate Air filter HEPA: High Efficiency Particulate Air filter ULPA: Ultra Low Penetratio
m
Average efficiency (E ) for

Air filter classification index

Test aerosol

ASHRAE dust DEHS (Di-Eth- yl-Hexyl- Sebacate) 0.2–3.0 μm
Test dust

G 1 G 2 G 3 G 4 M 5 M 6 F 7 F 8 F 9
Filter classes
Filter application Test Group designation Suitable for G Coarse dust st (prefiltration) 1 filter stage M Fine dust F nd (fine filtration) 2 filter stage E H rd Suspended dust 3 filter stage (final filtration) U