Main HEPA filters
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Bacteriologic filters for premises with raised demands for pure air.

For example: hospitals, operating rooms, pharmaceutical plants, laboratories, food production plants.

Frame material: MDF, PVC compound or aluminium (68mm frame only).

Standard frame thickness: 68mm, 78mm, 150mm, 292mm.

We also offer manufacture of filters with unstandartized thickness of frame.

Filter Classification
Efficiency (%) at the MPPS Penetration (%) at the MPPS
Overall Value Local Value Overall Value Local Value
H10 > 85 - 15 -
H11 > 95 - 5 -
H12 > 99,5 - 0,5 -
H13 > 99,95 99,75 0,05 0,25
H14 > 99,995 99,975 0,005 0,025
U15 > 99,9995 99,9975 0,0005 0,0025

Notes:

  • Filters in the class H10, H11 and H12 do not require verification of local penetration.
  • Filters in the classification H13 and H14 may, as an alternative, be verified with the visual oil-smoke test (previously known as DIN 24.184), which is accepted as equal or more searching than the specified local penetration.