Български
+359 2 926 88 44| info@uspehfilter.com

Leader in filter manufacturing in Bulgaria

Filters for air-condition and ventilation systems and HEPA filters

  • PRIMARY FILTERS

    Purpose:
    First level of air purifying in ventilation and air-conditioning systems.

  • FINE FILTERS

    Purpose:
    Second level of air purifying in ventilation and air-conditioning systems.

  • EPA, HEPA, ULPA FILTERS

    Purpose:
    Last level of air cleansing in multilevel filtration systems.

  • CARBON FILTERS

    Purpose:
    For smells and gases retention in air-conditioning, ventilation and other suchlike systems.

Groups of filters

Group of filters

Trapped particles

Class

Application

Filters for coarse particles 
(>10 micron)

Insects,Textile fibres, Fluff, Sand, Pollen, Cement dust

G2
G3
G4

Protection from insects. Filters for supply and return of air.
Filters for preliminary purification in spray booths.
Filters for preliminary purification in filter systems, equipped with filters of classes F5 — F9 ( M 5 - F 9)

Filters for small particles 
(from 1 to 10 micron)

Spores,
Fluff,
Cement dust,
Bacteria,
Dust from the ambient air

F5 M5  F6 M6 

Filters for submission of ambient air for rooms without  high requirements,
Filters for supply and return of air,
Filters for preliminary purification in filter systems, equipped with filters of classes E10 and E11

Filters for small particles 
(from 1 to 10 micron)


Tobacco smoke,
Metal oxide fumes

F7
F8
F9

Filters for final purification of air in administrative offices, museums, airports, hospitals, electrical power stations.
Filters for preliminary purification in filter systems, equipped with filters of classes E12 — H14 

Filters type EPA for particles smaller than 1 micron

Bacteria,
Viruses,
Tobacco smoke,
Metal oxide fumes, Microbes

E 10
E 11

Filters for final purification of indoor air, meeting high requirements (laboratories, pharmaceutical enterprises, electronics manufacturing, etc.).

Filters type HEPA

Microbes

E12

Filters for final purification of indoor air, meeting class 5 and 6 according to EN 1822

Filters type HEPA

Microbes, Aerosols

H13

Filters for final purification of air in nuclear power plants,
Filters for supply of air in operating units.
Filters for final purification of indoor air, meeting the requirements for class 3 and 4 according to EN 1822.

Filters type НEPA
Filters type ULPA

Aerosols

H14
U15
U16
U17

Filters for purification of indoor air in electronics and pharmaceuticals companies.
Filters for final purification of indoor air, meeting the requirements for class 1 and 2 according to EN 1822.


Classification

EN — 779 Classification EUROVENT Classification Average Arrestance /A %/ Average Efficiency /E %/
G 1 EU 1 Am < 65
G 2 EU 2 65 ≤ Am <80
G 3 EU 3 80 ≤ Am <90
G 4 EU 4 90 ≤ Am
F/ M 5 EU 5 40 ≤ Em <60
F / M 6 EU 6 60 ≤ Em <80
F 7 EU 7 80 ≤ Em <90
F 8 EU 8 90 ≤ Em <95
F 9 EU 9 95 ≤ Em
Initial Efficiency E   E° < 20% E° ≥ 20%
Final Pressure drop   250 Pa 450 Pa

Absolute filters

EN EUROVENT INITIAL EFFICIENCY E PENETRATION P DEC.FACTOR D
E 10 EU 10 95 ≤ E¡ <99,9 5 ≥ P <0,1 20 ≤ Dƒ <1000
E 11 EU 11 99,9 ≤ E¡ <99,97 0,1 ≥ P <0,03 1000 ≤ Dƒ <3000
E 12 EU 12 99,97 ≤ E¡ <99,99 0,03 ≥ P <0,01 3000 ≤ Dƒ <10000
H 13 EU 13 99,99 ≤ E¡ <99,999 0,01 ≥ P <0,001 10000 ≤ Dƒ <100000
H 14 EU 14 99,999 ≤ E¡ <99,9999 0,001 ≥ P <0,0001 100000 ≤ Dƒ <1000000
U15 EU 15 99,9999 ≤ E¡ <99,99999 0,0001 ≥ P <0,00001 1000000 ≤ Dƒ <10000000
U16 EU 16 99,99999 ≤ E¡ <99,999999 0,00001 ≥ P <0,000001 10000000 ≤ Dƒ <100000000
U17 EU 17 99,999999 ≤ E¡ 0,000001 ≥ P 100000000 ≤ Dƒ

Trapped particles /micron/

Class

0.1

0.3

0.5

1

3

5

10

G2

0 — 5

5 — 15

15 — 35

50 — 70

G3

0 — 5

5 — 15

15 — 35

35 — 70

70 — 85

G4

0 — 5

5 — 15

15 — 35

30 — 55

60 — 90

85 — 98

M5

0 — 10

5 — 15

15 — 30

30 — 50

70 — 90

90 — 99

> 98

M6

5 — 15

10 — 25

20 — 40

50 — 65

85 — 95

95 — 99

> 99

F7

25 — 35

45 — 60

60 — 75

85 — 95

> 98

> 99

> 99

F8

35 — 45

80 — 90

95 — 98

> 99

> 99

> 99

F9

90 — 95

> 98

> 99

> 99

> 99

 Classes of filtration

G

F

H

0 0 0 0 0 
0 0 0 0 0 0 0
0 0 0 0 0 

0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0

0 0 0 0 0
0 0 0 0 0 0
0 0 0 0 0

 


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