POLYFOLD
AIR FILTERS
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Polyfold Air Filters


Polyfold Air Filters
View Enlarged Image of Polyfold Air Filters

Polyfold industrial air filters are excellent for general purpose filtration where high dust-holding capacity and low resistance are important. Uni-Foam and Quadrafoam media are used for permanent, cleanable filter applications. Polyester media is used in disposable filter applications.

Applications

Each model is excellent for general purpose filtration in commercial and industrial applications where low resistance and high dust holding capacity are most important. Order a free air filter prototype for your application today.

Model

Unifoam
Media
Thickness

Polyester
Media
Thickness

Frame
Thickness

3D CAD Model

PF-2525

.25 (25ppi)

 

1.88

Create & Download

PF-2550

.50 (25ppi)

 

1.88

Create & Download

PF-4525

.25 (45ppi)

 

1.88

Create & Download

PF-4550

.50 (45ppi)

 

1.88

Create & Download

PFPE-50

 

.50

1.88

Create & Download

PFPE-100

 

1.00

1.88

Create & Download


Filtration Performance Data

Hover over the links below to view the filtration performance data for each media.

Media Printer Version
Quadrafoam Print
Polyester Print
Uni-Foam Print
Quadrafoam II Print

Tolerances

Framed Filters +/-.06" length & width, +/-.03" thickness
Pad Filters +/-.12" length & width, +/-.06" thickness

Media

Uni-Foam and Quadrafoam media are used for permanent type cleanable filter applications, and polyester media is used when a disposable filter is most appropriate. After the media and the Uni-Grid support are bonded into one unit, they are mechanically formed into gently rolling pleats, with no areas of tension and minimum distortion. This produces an even flow of air throughout the entire extended area of the filter. Results are lower air flow resistance and a much greater dust holding capacity.  Uni-foam and Quadrafoam are available in various pores per inch (PPI) ranging from 10 through 60 PPI.

Standards & Classifications

UL 900 Class 2, UL 94 HF-1
Telcordia NEBS GR-78-CORE
Telcordia NEBS GR-63-CORE
FMVSS 302

Frame

Roll formed into a strong sturdy one-piece channel, using .040" thick, 3000 series aluminum. Frame is tightly fitted to filter media and fastened with two aluminum rivets. The UL listing, model number and air flow direction are roll imprinted into the frame. Part number is metal stamped into frame for quick, accurate identification. 

Uni-Grid Support

Expanded on our specially designed Uni-Grid equipment, using .040" thick, 3000 series aluminum. Uni-Grid expanded aluminum is approximately 85% open to lower resistance.
Click here to order your free made-to-spec prototype

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Copyright © 2007 Universal Air Filter. All Rights Reserved
 

QUADRAFOAM
FILTRATION PERFORMANCE DATA

Models
FF-2X, FF-3, FF-5, FF-1025-B, Windowpane, Flex-Frame, Dual/EMI
0.25 in (6,35 mm)
Thick Foam Media

 

Models
FF-5X, FF-1050B, Windowpane, Flex-Frame, Dual/EMI
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FF-2X, Windowpane, Flex-Frame, Dual/EMI
0.125 in (3,18 mm)
Thick Foam Media

10
PPI

25
PPI

45
PPI

60
PPI

 

10
PPI

25
PPI

45
PPI

60
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.05
(12,44)

0.07
(17,41)

0.12
(29,84)

 

0.03
(7,46)

0.08
(19,89)

0.16
(39,78)

0.25
(62,16)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

66

80

82

 

63

83

91

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

QUADRAFOAM II
FILTRATION PERFORMANCE DATA

Models
FF-2X, FF-3, FF-5, FF-1025-B, Windowpane, Flex-Frame, Dual/EMI
0.25 in (6,35 mm)
Thick Foam Media

 

Models
FF-5X, FF-1050B, Windowpane, Flex-Frame, Dual/EMI
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FF-2X, Windowpane, Flex-Frame, Dual/EMI
0.125 in (3,18 mm)
Thick Foam Media

10
PPI

30
PPI

45
PPI

 

10
PPI

30
PPI

45
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.05
(12,44)

0.07
(17,41)

 

0.03
(7,46)

0.09
(22,38)

0.16
(39,78)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

66

80

 

63

83

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

EMI VENT PANEL
FILTRATION PERFORMANCE DATA

Models
HC-2X, Windowpane 0.125 in (3,18) x 0.125 in (3,18)
Thick Foam Media

 

Models
HC-3, WINDOWPANE 0.125 in (3,18) x 0.25in (6,35mm)
Thick Foam Media

 

Models
HC-5X 0.125 in (3,18) x 0.50in (12,70mm)
Thick Foam Media

Inital Resistance[in inches (Pascals) water gauge]

0.005
(1,24)

 

0.007
(1,74)

 

0.01
(2,49)

 

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

DUAL EMI AIR FILTERS - QUADRAFOAM
FILTRATION PERFORMANCE DATA

Models
FF-2X, FF-3, FF-5, FF-1025-B, Windowpane, Flex-Frame, Dual/EMI
0.25 in (6,35 mm)

Thick Foam Media

 

Models
FF-5X, FF-1050B, Windowpane, Flex-Frame, Dual/EMI
0.50 in (12,70 mm)

Thick Foam Media

 

Models
FF-2X, Windowpane, Flex-Frame, Dual/EMI
0.125 in (3,18 mm)

Thick Foam Media

10
PPI

25
PPI

45
PPI

60
PPI

 

10
PPI

25
PPI

45
PPI

60
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.05
(12,44)

0.07
(17,41)

0.12
(29,84)

 

0.03
(7,46)

0.08
(19,89)

0.16
(39,78)

0.25
(62,16)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

66

80

82

 

63

83

91

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

DUAL EMI AIR FILTERS - POLYESTER
FILTRATION PERFORMANCE DATA

Models
PE-2X, PE-3, PE-5, PE-1025-B, PFPE-25, Windowpane
UFM-25 --
0.25 In (6,35 mm)
Thick Foam Media

 

Models
PE-3, PE-5X, PE-1050-B, PFPE-50, Windowpane
UFM-50 / UPR --
0.50 in (12,70 mm)
Thick Foam Media

 

Models
PE-5X, PE-1050-B, Windowpane
UFM-100 --
1.00 in
(25,40 mm)
Thick Foam Media

UFM-25

UFM-50

UPR

UFM-100

UPR

Inital Resistance[in inches (Pascals) water gauge]

0.07
(17,41)

0.10 (24,86)

0.14 (34,81)

0.14
(34,81)

0.14
(34,81)

 

Average Synthetic Dust Weight Arrestance (percent)

74

80

83

89

83

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

DUAL EMI AIR FILTERS - UNIFOAM
FILTRATION PERFORMANCE DATA

Models
FF-2X, FF-3, FF-5, FF-1025-B, Windowpane, Flex-Frame, Dual/EMI
0.25 in (6,35 mm)
Thick Foam Media

 

Models
FF-5X, FF-1050B, Windowpane, Flex-Frame, Dual/EMI
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FF-2X, Windowpane, Flex-Frame, Dual/EMI
0.125 in (3,18 mm)
Thick Foam Media

10
PPI

25
PPI

45
PPI

60
PPI

 

10
PPI

25
PPI

45
PPI

60
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.03 (7,46)

0.07
(17,41)

0.12
(29,84)

 

0.03
(7,46)

0.08
(19,89)

0.16
(39,78)

0.25
(62,16)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

63

80

82

 

63

83

91

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

DUAL EMI AIR FILTERS - QUADRAFOAM II
FILTRATION PERFORMANCE DATA

Models
FF-2X, FF-3, FF-5, FF-1025-B, Windowpane, Flex-Frame, Dual/EMI
0.25 in (6,35 mm)
Thick Foam Media

 

Models
FF-5X, FF-1050B, Windowpane, Flex-Frame, Dual/EMI
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FF-2X, Windowpane, Flex-Frame, Dual/EMI
0.125 in
(3,18 mm)
Thick Foam Media

10
PPI

30
PPI

45
PPI

 

10
PPI

30
PPI

45
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.05
(12,44)

0.07
(17,41)

 

0.03
(7,46)

0.09
(22,38)

0.16
(39,78)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

66

80

 

63

83

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

WINDOWPANE AIR FILTERS - QUADRAFOAM
FILTRATION PERFORMANCE DATA

Models
FS-XX25
0.25 in (6,35 mm)
Thick Foam Media

 

Models
FS-XX50
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FS-XX12
0.125 in (3,18 mm)
Thick Foam Media

10
PPI

25
PPI

45
PPI

60
PPI

 

10
PPI

25
PPI

45
PPI

60
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.05
(12,44)

0.07
(17,41)

0.12
(29,84)

 

0.03
(7,46)

0.08
(19,89)

0.16
(39,78)

0.25
(62,16)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

66

80

82

 

63

83

91

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

WINDOWPANE AIR FILTERS - POLYESTER
FILTRATION PERFORMANCE DATA

Models
FS-XX25
UFM-25 --
0.25 In (6,35 mm)
Thick Foam Media

 

Models
FS-XX50
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FS-XX12
1.00 in
(25,40 mm)
Thick Foam Media

UFM-25

UFM-50

UPR

UFM-
100

UPR

Inital Resistance[in inches (Pascals) water gauge]

0.07
(17,41)

0.10
(24,86)

0.14
(34,81)

0.14
(34,81)

0.14
(34,81)

 

Average Synthetic Dust Weight Arrestance (percent)

74

80

83

89

83

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

WINDOWPANE AIR FILTERS - UNIFOAM
FILTRATION PERFORMANCE DATA

Models
FS-XX25
0.25 in (6,35 mm)
Thick Foam Media

 

Models
FS-XX50
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FS-XX12
0.125 in (3,18 mm)
Thick Foam Media

10
PPI

25
PPI

45
PPI

60
PPI

 

10
PPI

25
PPI

45
PPI

60
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.03 (7,46)

0.07
(17,41)

0.12
(29,84)

 

0.03
(7,46)

0.08
(19,89)

0.16
(39,78)

0.25
(62,16)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

63

80

82

 

63

83

91

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

WINDOWPANE AIR FILTERS - QUADRAFOAM II
FILTRATION PERFORMANCE DATA

Models
FS-XX25
0.25 in (6,35 mm)
Thick Foam Media

 

Models
FS-XX50
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FS-XX12
0.125 in
(3,18 mm)
Thick Foam Media

10
PPI

30
PPI

45
PPI

 

10
PPI

30
PPI

45
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.05
(12,44)

0.07
(17,41)

 

0.03
(7,46)

0.09
(22,38)

0.16
(39,78)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

66

80

 

63

83

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

PYROCIDE VENT PANELS
FILTRATION PERFORMANCE DATA

Models
HC-2X, Windowpane 0.125 in (3,18) x 0.125 in (3,18)
Thick Foam Media

Models
HC-3, WINDOWPANE 0.125 in (3,18) x 0.25in (6,35mm)
Thick Foam Media

Models
HC-5X 0.125 in (3,18) x 0.50in (12,70mm)
Thick Foam Media

Inital Resistance[in inches (Pascals) water gauge]

0.006
(1,49)

 

0.008
(1,99)

 

0.01
(2,49)

 

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

FLEX-FRAME AIR FILTERS - QUADRAFOAM
FILTRATION PERFORMANCE DATA

Models
FF-2X, FF-3, FF-5, FF-1025-B, Windowpane, Flex-Frame, Dual/EMI
0.25 in (6,35 mm)
Thick Foam Media

 

Models
FF-5X, FF-1050B, Windowpane, Flex-Frame, Dual/EMI
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FF-2X, Windowpane, Flex-Frame, Dual/EMI
0.125 in (3,18 mm)
Thick Foam Media

10
PPI

25
PPI

45
PPI

60
PPI

 

10
PPI

25
PPI

45
PPI

60
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.05
(12,44)

0.07
(17,41)

0.12
(29,84)

 

0.03
(7,46)

0.08
(19,89)

0.16
(39,78)

0.25
(62,16)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

66

80

82

 

63

83

91

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

FLEX-FRAME AIR FILTERS - UNIFOAM
FILTRATION PERFORMANCE DATA

Models
FF-2X, FF-3, FF-5, FF-1025-B, Windowpane, Flex-Frame, Dual/EMI
0.25 in (6,35 mm)
Thick Foam Media

 

Models
FF-5X, FF-1050B, Windowpane, Flex-Frame, Dual/EMI
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FF-2X, Windowpane, Flex-Frame, Dual/EMI
0.125 in (3,18 mm)
Thick Foam Media

10
PPI

25
PPI

45
PPI

60
PPI

 

10
PPI

25
PPI

45
PPI

60
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.03 (7,46)

0.07
(17,41)

0.12
(29,84)

 

0.03
(7,46)

0.08
(19,89)

0.16
(39,78)

0.25
(62,16)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

63

80

82

 

63

83

91

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

FLEX-FRAME AIR FILTERS - QUADRAFOAM II
FILTRATION PERFORMANCE DATA

Models
FF-2X, FF-3, FF-5, FF-1025-B, Windowpane, Flex-Frame, Dual/EMI
0.25 in (6,35 mm)
Thick Foam Media

 

Models
FF-5X, FF-1050B, Windowpane, Flex-Frame, Dual/EMI
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FF-2X, Windowpane, Flex-Frame, Dual/EMI
0.125 in
(3,18 mm)
Thick Foam Media

10
PPI

30
PPI

45
PPI

 

10
PPI

30
PPI

45
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.05
(12,44)

0.07
(17,41)

 

0.03
(7,46)

0.09
(22,38)

0.16
(39,78)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

66

80

 

63

83

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

POLYESTER AIR FILTERS
FILTRATION PERFORMANCE DATA

Models
PE-2X, PE-3, PE-5, PE-1025-B, Polyfold, Windowpane UFM-25 -- 0.25 In (6,35 mm)
Thick Foam Media

Models
PE-3, PE-5X, PE-1050-B, Polyfold, Windowpane UFM-50 / UPR -- 0.50 in (12,70 mm)
Thick Foam Media

Models
PE-5X, PE-1050-B, Polyfold, Windowpane UFM-100 -- 1.00 in (25,40 mm)
Thick Foam Media

UFM-25

UFM-50

UPR

UFM-
100

UPR

Inital Resistance[in inches (Pascals) water gauge]

0.07
(17,41)

0.10
(24,86)

0.14
(34,81)

0.14
(34,81)

0.14
(34,81)

 

Average Synthetic Dust Weight Arrestance (percent)

74

80

83

89

83

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

POLYFOLD AIR FILTERS - QUADRAFOAM
FILTRATION PERFORMANCE DATA

Models
PF-1025, PF-2525, PF-4525, PF-6025
0.25 in (6,35 mm)
Thick Foam Media

 

Models
PF-1050, PF-2550, PF-4550, PF-6050
0.50 in (12,70 mm)

Thick Foam Media

 

Models
PF-1012, PF-2512, PF-4512, PF-6012
0.125 in (3,18 mm)

Thick Foam Media

10
PPI

25
PPI

45
PPI

60
PPI

 

10
PPI

25
PPI

45
PPI

60
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.04 (9,95)

0.05 (12,44)

0.10 (24,87)

 

0.03 (7,46)

0.07 (17,41)

0.12 (29,84)

0.25 (62,16)

 

0.03
(7,46)

0.10
(24,87)

 

Average Synthetic Dust Weight Arrestance (percent)

38

66

80

82

 

63

83

91

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

POLYFOLD AIR FILTERS - POLYESTER
FILTRATION PERFORMANCE DATA

Models
PFPE-25
UFM-25 -- 0.25 In (6,35 mm)
Thick Foam Media

 

Models
PFPE-50
UFM-50 / UPR -- 0.50 in (12,70 mm)
Thick Foam Media

 

Models
PFPE-100
UFM-100 -- 1.00 in (25,40 mm)
Thick Foam Media

UFM-25

UFM-50

UFM-100

Inital Resistance[in inches (Pascals) water gauge]

0.05
(12,44)

0.09
(22,38)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

74

88

89

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

POLYFOLD AIR FILTERS - UNIFOAM
FILTRATION PERFORMANCE DATA

Models
PF-1025, PF-2525, PF-4525, PF-6025
0.25 in (6,35 mm)
Thick Foam Media

 

Models
PF-1050, PF-2550, PF-4550, PF-6050
0.50 in (12,70 mm)

Thick Foam Media

 

Models
PF-1012, PF-2512, PF-4512, PF-6012
0.125 in (3,18 mm)

Thick Foam Media

10
PPI

25
PPI

45
PPI

60
PPI

 

10
PPI

25
PPI

45
PPI

60
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.04 (9,95)

0.05 (12,44)

0.10 (24,87)

 

0.03 (7,46)

0.07 (17,41)

0.12 (29,84)

0.25 (62,16)

 

0.03
(7,46)

0.10
(24,87)

 

Average Synthetic Dust Weight Arrestance (percent)

38

66

80

82

 

63

83

91

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

POLYFOLD AIR FILTERS - QUADRAFOAM II
FILTRATION PERFORMANCE DATA

Models
PF-1025, PF-2525, PF-4525, PF-6025
0.25 in (6,35 mm)
Thick Foam Media

 

Models
PF-1050, PF-2550, PF-4550, PF-6050
0.50 in (12,70 mm)
Thick Foam Media

 

Models
PF-1012, PF-2512, PF-4512, PF-6012
0.125 in
(3,18 mm)
Thick Foam Media

10
PPI

30
PPI

45
PPI

 

10
PPI

30
PPI

45
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.04 (9,95)

0.05 (12,44)

 

0.03 (7,46)

0.07 (17,41)

0.12 (29,84)

 

0.03
(7,46)

0.10
(24,87)

 

Average Synthetic Dust Weight Arrestance (percent)

38

66

80

 

63

83

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.

UNIFOAM AIR FILTERS
FILTRATION PERFORMANCE DATA

Models
FF-2X, FF-3, FF-5, FF-1025-B, Windowpane, Flex-Frame, Dual/EMI
0.25 in (6,35 mm)
Thick Foam Media

 

Models
FF-5X, FF-1050B, Windowpane, Flex-Frame, Dual/EMI
0.50 in (12,70 mm)
Thick Foam Media

 

Models
FF-2X, Windowpane, Flex-Frame, Dual/EMI
0.125 in (3,18 mm)
Thick Foam Media

10
PPI

25
PPI

45
PPI

60
PPI

 

10
PPI

25
PPI

45
PPI

60
PPI

 

45
PPI

80
PPI

Inital Resistance[in inches (Pascals) water gauge]

0.01
(2,49)

0.03
(7,46)

0.07
(17,41)

0.12
(29,84)

 

0.03
(7,46)

0.08
(19,89)

0.16
(39,78)

0.25
(62,16)

 

0.04
(9,95)

0.12
(29,84)

 

Average Synthetic Dust Weight Arrestance (percent)

38

63

80

82

 

63

83

91

91

 

65

81

Tests performed according to ASHRAE Standard 52.1 -1992 
at 300 feet per minute (1,53 m/s) face velocity.