Flanders 95% DOP Filter Alpha 95, FFI Alpha 95 Specification Sheet
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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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