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Flanders Filters ~ Foremost in Air Filtration
Toll Free:1-800-637-2803
FOREMOST IN AIR FILTRATION
Alpha 95
General
Flanders Alpha 95 filters are designed for use in
HVAC applications requiring cleaner air than is
possible with ASHRAE rated filters, but where
HEPA filtered air is not required. The filters are
rated at 95% efficiency on 0.30 micrometer
particles by the DOP test method. The Alpha 95
is rated MERV 17 per ASHRAE Standard 52.2.
Alpha 95 filters are identical in design and construction to the Alpha Cell HEPA filters except that
the media is 95% efficient on 0.30 micrometer particles.
Installation Considerations
Alpha 95 filters should be installed in Flanders
leak tight Alpha HEPA frames or Surelock Side
Access HEPA Housings on the positive-pressure
side of the system fan to prevent air bypass.
Sureaire diffuser sections, air mixing baffles or
long transitions should be used if the bank is close
to the fan.
Installation of Flanders ASHRAE efficiency
prefilters upstream of the fan is recommended to
ensure economical Alpha 95 filter life.
Important Features
• Minimum efficiency is 95% on 0.30 micrometer
particles.
• Manufactured in a variety of wood and metal
frame types.
• Available with a media pack with aluminum
separators or with a separatorless pack.
• Available in a variety of sizes with either a gasket
or gel seal.
95% DOP Filter
Bulletin PB1400-1106
Standard Alpha 95 filters have 1.7 times the cfm
capacity of standard Alpha Cell 99.97% DOP HEPA
filters at the same clean pressure drop. They are
normally rated at 500 fpm so that filter banks with
95% DOP filters can be sized the same as
ASHRAE-rated filter banks.
Typical applications for Alpha 95 include:
• Hospitals
• Biomedical
• Pharmaceutical
• Biotechnology
• Genetic Research
• Universities
• Laboratories
• Food Processing
• Photo Processing
• Semiconductor Fabrication
• Industrial Processing Systems Product
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Flanders Filters ~ Foremost in Air Filtration
Toll Free:1-800-637-2803
Construction
Flanders manufactures both conventional Separator Style and
Pureform Separatorless 95 DOP filters. To make a Separator
Style filter, the media is folded over corrugated aluminum separators with hemmed edges to separate the pleats in the filter
pack. Flanders manufactures its own filter media, enabling it to
develop a unique manufacturing process for the production of
Pureform Separatorless 95% DOP filters. In one manufacturing
operation, Flanders produces a self-supporting and self-separating Pureform Media Pack.
The Pureform filter offers many advantages over conventional
Separator Style 95% DOP Filters:
• Increased usable media area affords longer service life and
higher dust holding capacity
• Maximum utilization of the media
• Can handle some harsh environments which may attack
aluminum separators
• Media pack can be incinerated
• Media is 28 mils, significantly thicker than conventional media used in Separator Style 95 DOP filter (15 mil)
• Pureform has 25% more media area than conventional
style.
• Ideal for heavy loading applications such as oil mist.
Alpha 95 with
separator Style
Media Pack
Alpha 95 with
Pureform Media Pack
Alpha 95
Pressure Drop vs. Air Velocity
0 125 250 375 500 625
1.40
1.20
1.00
0.80
0.60
0.40
0.20
0.00
Air Velocity (fpm)
Pressure Drop (in. w.g.)
CFM CAPACITIES AND DIMENSIONS
Frame Depth
(Inches)
Filter Size &
Frame Depth
Designator
Actual Face
Size (inches)
cfm Capacity at Clean Pressure Drop
inches w.g.
.65 1.0 1.35
Weight
(Lb.)
GG-F 24 x 24 1375 2000 2560 38
GC-F 24 x 12 650 920 1180 26
YY-F 23-3/8 x23-3/8 1350 1900 2450 37
YU-F 23-3/8 x11-3/8 610 865 1150 25
GN-F 24 x 30 1750 2550 3250 45
CC-F 12 x 12 290 430 550 14
11- 1/2
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Flanders Filters ~ Foremost in Air Filtration
Toll Free:1-800-637-2803
Frame: Alpha 95 filters are available in a variety of wood and metal frame materials such as particle board, plywood,
galvanized steel and stainless steel. Alpha 95 filters are also available in 24 gauge corrosion resistant steel in single or
double headers for installation in side access or plenum applications.
Seal: The standard gasket seal is 0.75” x 0.25” neoprene for installation on either the upstream, downstream or both
sides of the filter. The standard Fluid Seal is Flanders Blu-Jel® Seal which is a two-part silicone material suitable for
temperatures up to 390°F.
Faceguards: Faceguards are used to protect the filter media from mechanical damage. The typical faceguard material
is expanded aluminized steel. Galvanized 4 x 4 mesh welded wire and Type 304 stainless steel faceguards are also
available.
UL: Alpha 95 filters are either UL900 Class 1 or Class 2 listed depending on materials of construction.
Banks: Alpha Frames are designed for Alpha 95 filters in built-up filter banks. Each filter is secured in the frame with
four bolt-type fasteners that either compress the gasket or press the knife edge into the gel in the filter channel to
maintain a leak-tight seal. Surelock B or C-3 gasket seal and Surelock C-4 for Blu Jel HEPA Filter Housings are
recommended for side-access applications. The filters are sealed in place with either spring-loaded swing arm assemblies or a locking mechanism. The swing arm assemblies or locking mechanism either compress the gasket or press
the knife edge into the gel in the filter channel to maintain a leak-tight seal.
Hardware
0 = None
T = Extractor Clips
Efficiency
00J = 95% DOP
Capacity/Pack Style
C = Separator
D = 4 inch Pureform
F = 8 inch Pureform
W = 11 inch Pureform
Frame Material
02 = 16 GA 409 Stainless
03 = 16 GA 304 Stainless
04 = 3/4 in. FIRE RETARDANT PLYWOOD
05 = FABRICATED ALUMINUM
07 = 3/4 in. FIRE RETARDANT
PA RTICLE BOARD
08 = 16 GA. GALVANNEAL
11 = 3/4 in. NON FIRE RETARDANT
PA RTICLE BOARD
16 or 17 = CORROSION-RESISTANT
24 GA. STEEL
Frame Style
00 = BOX
01 = SINGLE HEADER (13/16”)
02 = DOUBLE HEADER (13/16”)
03 = DOUBLE TURNED FLANGE
05 = 3/4 IN. DEEP CHANNEL GEL SEAL
08 = DOUBLE-TURNED FLANGE, ONE SIDE
Sealant Material
IU = URETHANE
IH = HOT MELT
Gasket material Gasket location
0 = NONE 0 = NONE
1 = NEOPRENE 1 = UPSTREAM
5 = BLUE JEL 2 = DOWNSTREAM
3 = BOTH SIDES
Filter Depth
D = 5-7/8”
F = 11-1/2”
Filter Face Size (HxW)
B = 8” N = 30” R = 6 0”
C = 12” P = 36” S = 72”
E = 18” H = 42” U = 11-3/8”
G = 24” Q = 48” Y = 23-3/8”
Odd Size Designator
Odd size designators are an Alpha Numeric description. The
first two digits specify the height whole number with an alpha
designator specifying the height fraction. The second two
digits specify the width whole number with an alpha designator
specifying the width fraction. And the last alpha designator
specifies the depth. If the height or width is less than 10
inches, use a 0 in front of the dimension.
A = 0” F = 5/16” L = 5/8”
B = 1-1/16” G = 3/8” M = 11/16”
C = 1/8” H = 7/16” N = 3/4”
D = 3/16” J = 1/2” P = 13/16”
E = 1/4” K = 9/16” Q = 7/8”
R = 15/16”
Faceguard Material Faceguard Location
0 = NONE 0 = NONE
1 = GALVANIZED 4X4 MESH 1 = UPSTREAM
G = ALUMINIZED EXPANDED METAL 2 = DOWNSTREAM
2 = 17GA. SS 4X4 MESH
5 = 22 GA. SS 4X4 MESH
ALPHA 95 COMPONENT CHART
0 - 00J - W - 08 - 03 - IU - 12 - 00 - GG - F
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Flanders Filters ~ Foremost in Air Filtration
Toll Free:1-800-637-2803
1.0 General
1.1 Alpha 95 filters shall be extended media
(separator type) (Pureform separatorless
type) filters as manufactured by Flanders.
1.2 Filter sizes, capacities and construction options shall be as scheduled on the drawings.
1.3 Filters shall be (UL 900 Class 1)( UL 900
Class 2) listed.
2.0 Filter Construction
2.1 The filter pack shall be constructed by pleating a continuous sheet of non-woven waterresistant fiberglass media around hemmededge corrugated aluminum separators. The
filter pack shall be constructed by pleating a
continuous sheet of formed, corrugated medium so that the pack is self-supporting
without the use of spacers of any kind,
including separators, tape strings, adhesives
or strips of media.
2.2 The filter pack shall be sealed into a
(galvaneal) (409 stainless steel) (304
stainless steel) (particleboard) (fire retardant
particleboard) (fire retardant plywood) frame
with a fire retardant (polyurethane foam)
(solid urethane) sealant. (Steel frames shall
be 16 ga.) (Wood frames shall be 3/4”
thick.)
2.3 (A 40-durometer closed-cell neoprene
gasket) (Silicone gel in a channel) shall be
provided on one or more sides to seal the
filter in the mounting device.
3.0 Performance
3.1 Initial and final resistances shall not exceed
the scheduled values.
3.2 The rated minimum efficiency of 95% on 0.3
micrometer size particles shall be as
determined by the DOP Test Method
Guide Specifications
Flanders Filters, Inc.
531 Flanders Filter Road
Washington, NC 27889
Phone: (252) 946-8081
Fax: (252) 946-3425
Toll Free: (800) 637-2803
Website: www.flanderscorp.com
Represented By:
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