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Technical |
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Test
Methods |
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CLASSIFICATION OF GENERAL
VENTILATION FILTERS ACCORDING TO THE EN 779:2002
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Filter class according to
EN 779:2002 |
Average gravimetric
efficiency |
Average colorimetric
efficiency |
Filter class
according
to UNI 10339 |
Filter efficiency
according to UNI 10339 |
|
% |
%
|
|
G1 |
< 65
|
|
1 |
M |
|
G2 |
65 ≤ 80
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|
2 |
M |
|
G3 |
80 ≤ 90
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|
3 |
M |
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G4 |
90 ≤ |
|
4 |
M |
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F5 |
|
40 ≤ 60
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5 |
A |
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F6 |
|
60 ≤ 80
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6 |
A |
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F7 |
|
80 ≤ 90
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7 |
A |
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F8 |
|
90 ≤ 95
|
8 |
A |
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F9 |
|
95 ≤
|
9 |
A |
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CLASSIFICATION OF HEPA FILTERS ACCORDING TO EN 1822
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M.P.P.S. global values
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M.P.P.S. local values
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Filter class
|
Efficiency (%)
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Penetration (%)
|
Efficiency (%)
|
Penetration (%)
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H10 |
85
|
15
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H11 |
95 |
5 |
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H12 |
99,5
|
0,5
|
|
|
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H13 |
99,5 |
0,05 |
99,75 |
0,25
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H14 |
99,995
|
0,005
|
99,975
|
0,025
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H15 |
99,9995
|
0,0005 |
99,9975
|
0,0025
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H16 |
99,99995
|
0,00005
|
99,99975
|
0,00025
|
|
H17 |
99,999995
|
0,000005
|
99,9999
|
0,0001
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