Air Filters Air Handling Air Conditioning Filters

R&B Industrial supply an extensive range of Air Filters (Air Handing Filters, Air Conditioning Filters)

How do we select the correct grade and type of air filter / filter media?

In order to select the correct type of air filter we need to firstly understand the system requirements, for instance: types of dusts / particulate being handled / processed, dust loadings and filtration level required. We then need to select the appropriate filter media, grading and efficiency and match this with the system air flow. It is imperative that the correct ‘filter velocities’ are selected for the dust / contaminant types and filter media selected.

For instance for air handling units and general ventilation systems, Table 1 below shows Concentration of dust in outdoor air in different areas. Specific calculations/ procedures are used to select the right filter, especially for industrial use.

  • AF06 synthetic air filter EU5 media
  • Rigid mini bag pleat filters (3)
  • Multi pocket filter (1)
  • Panel Filter b

Area

Average particulate
concentration

mg/m³

Most
frequent
particle size
micron

Maximum
particle size

micron

Rural areas

humid weather

0,01

0,8

4

dry weather

0,15

2,0

25

Urban areas

residential areas

0,4

7,0

60

industrial areas

0,75

20,0

100

Industrial districts and major traffic highways

3 and over

60

1000


Air filter classification is regulated by a series of very strict standards that specifically define the features of the filters according to the relevant efficiency class and use. You must know all these standards to be able to propose the filter that best meets the project requirements. Below, are the main standards used today with a series of tables that indicate the efficiency class of each filter. Before starting, we want to remind you that the air filters considered by the standards belong to three main groups:

  • coarse
  • fine
  • absolute

These are then divided into two different class: HEPA (High Efficiency Particulate Air filters) and ULPA (Ultra Low Penetration Air filters).


Category

Class

Minimum efficiency % in the size
range of micron particles

Arrestance
std. 52.1
%

Final
pressure
drop
Pa

EN 779 2002

μm
0,30 - 1,14

Μm
1,14 - 3,46

Μm
3,46 - 10,0

coarse

MERV 1
MERV 2
MERV 3
MERV 4

-
-
-
-

-
-
-
-

Emin.< 20
Emin.< 20
Emin.< 20
Emin.< 20

Aavg < 65
65 < Aavg < 70
70 < Aavg < 75
75 < Aavg

150
150
150
150

G 1
G 2
G 3
G 4

low
efficiency

MERV 5
MERV 6
MERV 7
MERV 8

-
-
-
-

-
-
-
-

20 < Emin.< 30
30 < Emin.< 45
45 < Emin.< 65
65 < Emin.< 80

-
-
-
-

150
150
150
150

-
-
-
-

average
efficiency

MERV 9
MERV 10
MERV 11
MERV 12

-
-
-
-

Emin.< 30
30 < Emin.< 45
45 < Emin.< 65
65 < Emin.< 90

80 < Emin.
80 < Emin.
80 < Emin.
80 < Emin

-
-
-
-

250
250
250
250

F 5
F 5
F 6
F 6

high
efficiency

MERV 13
MERV 14
MERV 15
MERV 16

Emin.< 65
65 < Emin.< 85
85 < Emin.< 95
95 < Emin.

90 < Emin.
90 < Emin.
90 < Emin.
90 < Emin.

90 < Emin.
90 < Emin.
90 < Emin.
90 < Emin

-
-
-
-

350
350
350
350

F 7
F 8
F 9
F 9

 

Our filters offer equivalent performances and can be direct replacements for JASON, LUWA, CAMFIL, FARR, EMCEL, AAF, NATIONWIDE, CPL, Coal products, BINKS, ANDREA, Ace Filtration, and many more

Applications include:

  • HVAC Filtration
  • VOC Removal / Reduction
  • Acid Gas Removal / Reduction
  • Industrial Vacuum Filtration
  • Oil Clarification
  • Ammonia Adsorption
  • Particulate Accumulation
  • Lavatory Odour Control
  • Microbe / Fungus Removal / Reduction
  • Reproduction Equipment Fume Control
  • Air Dryers
  • Clean Room Air Polishing
  • Spray Booth Filtration

Compressed Air Filters:

A wide range of compressed air filters can be supplied for OEM compressor equipment, such as Domnick Hunter, Walker, Bauer, Howden, Parise etc.

Engine and Vehicle air filters

We have a wide range of industrial and commercial vehicle, engine and motor filters; please see commercial vehicle air, fuel, hydraulic filters

R&B Industrial have an extensive range of low cost Air Filters including glass fibre and synthetic panel filter, rigid bag filters, Carbon impregnated and modular Filters, Final HEPA, ULPA filters, pleated spray booth Andreas type filters; please call us with your enquiry or requirements.

We can also provide filters to the following areas; Hampshire Berkshire Avonmouth Dorset Devon Wiltshire Somerset Oxfordshire Buckinghamshire Middlesex Northamptonshire Surrey Sussex Wales, Bedfordshire Gwent Cambridgeshire Cardiff Carmarthenshire Ceredigion Clackmannanshire Derbyshire Essex Gloucestershire Greater London Gwynedd, Hertfordshire, Isle of Wight Nottinghamshire Kent Leicestershire

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