Library

Filter classification

  • Input filtration fot control center (e.g. at the airport)
  • Input and circulating filters for eechange center in agresive conditions.
  • Computers area
  • Input and circulating filters for microelectronic
The filter groupThe level of filtrationThe examples of separated particles materialRecommendation for application
of air filters
G
Filters for coarse dust particles

Efficient for particles ≥ 10 μm

EN 779
G1
G2

  • Leaves

  • Insects

  • Textile fibres

  • Sand

  • Flying ash

  • Mist

  • Hair

Only for simplest application (e.g. protection against insects)
G
Filters for coarse dust particles

Efficient for particles ≥ 10 μm

EN 779
G3
G4

  • Flower pollen

  • Pollen

  • Fog


  • Waste air of painting boxes and kitchens

  • Protection against the pollution of air conditioning and compact instruments (e.g. window air conditioning, fans)

  • Pre – filters for the filtration classes F7 and F8( it is necessary only for heavy polluted input air)

  • Pre filters and circulation filters for public protection equipments

F
Filters for fine dust

Efficient for particals ≥ 1 μm
EN 779
F5

  • spore

  • Cement dust

  • Particles creating stain or dust sedimentation


  • Entering filters for the areas with low demand(e.g. workshops,storages,garage)

  • Pre-filters for the filtration class F8 and F9.

F
Filters for fine dust

Efficient for particals ≥ 1 μm
EN 779
F6

  • Bacterium

  • Embryo on the carrying parts


  • The entering filters for the area with low demand(e.g. selling areas,specific production area)

  • Pre-filters for the class filtration F9 and H10

  • Filters for waste air for heat exchanger and recuparator

F
Filters for fine dust

Efficient for particals ≥ 1 μm
EN 779
F7
F8

  • Acumulated carbon black

  • So called dust going through lung


  • Circulating filters in air conditioning

  • End filters in air conditioning pro average request e.g. shops,offices and specific production areas.

  • Pre filters for the filtration class H11 and H12.

F
Filters for fine dust

Efficient for particals ≥ 1 μm
EN 779
F8
F9

  • Tobacco smoke (roase fractions)

  • Metal oxide smoke(soarse fractions)

  • Oil smoke


  • The end filters in air conditioning for higher requests e.g. offices, workshops, telecommunication centres, laboratories etc.

  • Outside air equipments in hospitals

  • Digital phone exchanges

  • Pre-filters for the filtration class H13 and H14

  • Pre-filters for adsorbable filters(e.g. filters with active carbon)

  • Pre-filters in pharmacy

H
Filters for micro particles

Efficient for particles ≥ 0,01 μmEN 1822
H10
H11

  • Embryos

  • Tobacco smoke

  • Smoke of metal oxide

  • Swirl on th carrying particles

  • Carbon black


  • End filters for the area with high request (e.g. laboratories and hospitals)

  • End filters for “clean areas”, classes  ≥ ISO 7 in pharmacy, food, optitions and light industry

H
Filters for micro particles

Efficient for particles ≥ 0,01 μmEN 1822
H12
H13

  • Oil smoke in the initial stage

  • Aerosol micro particles

  • Radioactive aerosol


  • End filters for hospitals with higher requirements but without any prescription for leakeage test

  • End filters for food. electronic, pharmacy and foil industry

  • Filters for waste air in nuclear technics

  • End filters for “clean area” classes  ≥ ISO 5

  • The end filters in public pro

H
Filters for micro particles

Efficient for particles ≥ 0,01 μmEN 1822
H14

  • Aerosol micro particles

  • Swirl


  • The end filters for “clean areas” classes ≥ ISO 4

  • The end filters for pharmacy, hospitals with higher requirements and strongest rules for the leakage tests

U
Filters for micro particles

EN 1822
U15
U16
U17

  • Aerosol micro particles


  • End filters for “clean areas” classes  ≥  IS0 3

  • End filters for “clean areas” classes  ≥  IS0 2

  • End filters for “clean areas” classes ≥  IS0 1

A
Filters with active coal
Active coal (not impregnated coal)

  • Light volatile hydrocarbon VOC’S

  • Asphalt, tar and petrol and kerosine fume

  • Solvent fume

  • Body civilisation and hospital smell

  • Food, kitchen and rotting smell


  • Catching smell at airports, offices and public buildings, hotels, hospitals.

  • Decreasing the syndrom of ill buildings

  • Input filtration in microelectronic

  • Removing the harmful gases from recirculing air

The filtration of gases(Impregnated active coal)

  • Acid spot gases

  • SO2, S04, NO2, NOx

  • HCl, H2SO4, H2S, HF, Cl2


  • Input filtration fot control center (e.g. at the airport)

  • Input and circulating filters for eechange center in agresive conditions.

  • Computers area

  • Input and circulating filters for microelectronic

It is not standarised(Impregnated active coal)

  • Amine

  • NH3, NH4

  • NMP, HMDS


  • Circulating filters in microelectronics