Fabric Filters
Extensive technical paper discussing the various types and cost calculations of fabric filters and the required auxiliary equipment, followed by a review of the related fabric filtration theories forming a foundation for sizing procedures. Authors: James A. Turner and others.
http://www.p2pays.org/ref/10/09848.pdf

Fortress Designs
Supplier of dust control equipment, bag houses, dust collectors, fabric filters, dust filters, bin vents.
http://www.fabricfilters.com/

Bateman Engineering NV
Pneumatic conveying systems, global engineering solution Bateman is an International Process Engineering company with many specialist divisions from Solvent extraction pulsed columns process engineering to major engineering, construction design and project management contracts. BATEMAN International, leading the field in Engineering; Chemical, Electrical, Process, Civil, Mechanical engineers.
http://www.bateman-pneumatics.com/

Neundorfer, Inc.
At Neundorfer we take pride in the electrostatic precipitator and baghouse / fabric filter products we design, engineer and service in order to help utilities and other heavy industries achieve enhanced particulate air pollution control.
http://www.neundorfer.com

Fabric Focus, Ltd

http://www.fabricfocus.com/

Tyder Ltd
Provides digital filter design software which can produce specialised filters e.g. Windowed FFT, Optimal FIR filters, and IIR filters.
http://www.tyder.com/

Simple Filters
Easy to use filters for enhancing Photoshop and Paintshop Pro - Not available anywhere else!!!
http://www.btinternet.com/~cateran/simple/

Simple Filters
Easy to use filters for enhancing Photoshop and Paintshop Pro - Not available anywhere else!!!
http://www.btinternet.com/~cateran/simple/

OPT Hellas Custom Frequency Control Components
Manufacturers crystals, crystal filters, lc filters rf and microwave filters. Descriptions and catalogs and international sales network.
http://www.opthellas.com

DG Environmental Ltd. (DGE China)
Products include scrubbers, fabric filters, electrostatic precipitators, and mechanical collectors. Site includes product and company information.
http://www.dg-e.com