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Guide Specifications
1.0 General
1.1 Alpha 95 filters shall be extended media (sepa-
rator 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 water-resistant
fiberglass media around hemmed-edge corru-
gated 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, adhe-
sives or strips of media.
2.2 The filter pack shall be sealed into a (galvaneal)
(409 stainless steel) (304 stainless steel) (parti-
cleboard) (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 mount-
ing 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
Flanders - Foremost in Air Filtration
Corporate Headquarters, St. Petersburg, FL
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