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FLEX-FRAME
AIR FILTERS

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Flex-Frame Air Filters

Universal's Flex-Frame air filters use flexible, flame retardant, polypropylene plastic frames. The product line meets the stringent filtration and flammability requirements of Telcordia NEBS, CE and UL.

Applications

Electronics enclosure designers are challenged by ever-shrinking footprints that force them to be creative in their thermal management solutions. Flex-Frame filters are ideal for use in air filter applications that require the filter to "snake" around jutting components or conform to a radius-type bezel. The Flex-Frame is designed for electronics equipment that cannot accept a rigid air filter frame because of internal chassis obstructions or the necessity to follow a curved track. Order a free air filter prototype for your application today.

Specifications

Flex-Frame filters are available with Quadrafoam filter media in various pore sizes (20 through 45 PPI Green and 10 through 60 PPI Gray or Black), and various thicknesses (.25 to 1.00 inches). Frame thicknesses range from .03 to .125 inches. A solvent-resistant, two-part epoxy bonding material is used to securely unite frame and filter media making them inseparable.

Media

Cleanable black, gray or green Quadrafoam is specified for Flex-frame air filters. Quadrafoam is an open cell polyurethane foam specially coated to meet UL 94 HF-1. It features deep loading, large dust holding capacity and low air resistance.

Frame

Black polypropylene is rated UL 94V-0. Frames are manufactured using an innovative "frame-n-pane" design that integrates the frame and a series of crossing, reinforcing intermediates that provide media support. Pane sizes and frame thickness are customized to the equipment's needs.

Standards & Classifications

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

Model	Quadrafoam Media Thickness	Frame Thickness	3D CAD Model
FL-62-XXXX	.25 - .50	.062	Create & Download
FL-94-XXXX	.25 - .50	.094
FL-125-XXXX	.25 - .50	.125
XXXX - Denotes Quadrafoam PPI and thickness

Filtration Performance Data

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

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

Tolerances

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

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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)

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.