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 (M5...F9).

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 prepurification 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 pre purification in filter systems, equipped with filters of classes E12...H14.

Filters type EPA for very small particles (<1 micron)

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

E10
E11

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 EN1822.

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 EN1822.

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 EN1822.


Classification

EN779 Classification EUROVENT Classification Average Arrestance (A %) Average Efficiency (E %)
G1 EU1 Am < 65
G2 EU2 65 ≤ Am <80
G3 EU3 80 ≤ Am <90
G4 EU4 90 ≤ Am
F/M5 EU5 40 ≤ Em <60
F/M6 EU6 60 ≤ Em <80
F7 EU7 80 ≤ Em <90
F8 EU8 90 ≤ Em <95
F9 EU9 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
E10 EU10 95 ≤ E¡ <99,9 5 ≥ P <0,1 20 ≤ Dƒ <1000
E11 EU11 99,9 ≤ E¡ <99,97 0,1 ≥ P <0,03 1000 ≤ Dƒ <3000
E12 EU12 99,97 ≤ E¡ <99,99 0,03 ≥ P <0,01 3000 ≤ Dƒ <10000
H13 EU13 99,99 ≤ E¡ <99,999 0,01 ≥ P <0,001 10000 ≤ Dƒ <100000
H14 EU14 99,999 ≤ E¡ <99,9999 0,001 ≥ P <0,0001 100000 ≤ Dƒ <1000000
U15 EU15 99,9999 ≤ E¡ <99,99999 0,0001 ≥ P <0,00001 1000000 ≤ Dƒ <10000000
U16 EU16 99,99999 ≤ E¡ <99,999999 0,00001 ≥ P <0,000001 10000000 ≤ Dƒ <100000000
U17 EU17 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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