There are many types of filter media available today. Swift uses four main types as the foundation of our product line. Below is a brief comparison of typical cost/performance characteristics that may be of assistance in helping to make the proper selection for your filtration applications.

  Cellulose Micro-Fiberglass S.S Wire Cloth Metal Felt
Initial Cost Low Moderate Low to High* High
Capture Efficiency Moderate High Low to High* High
Dirt Holding Capacity Moderate High Low to High* High
Differential Pressure Low to Moderate Low to Moderate Low to High* Low
Life in a System Moderate High Low to High* High
Fluid Compatibility Low Moderate High High
Cleanable No No Yes Yes
*The performance of stainless steel elements depends on the mesh size and the fluid system requirements. Contact us for more information.

The chart below provides a particle size comparison of the more recent ISO 16889 standard with the old ISO 4572 standard.

Bx(c)=1000 (ISO 16889) 2.5 5 7 12 22
Bx=200 (ISO 4572) ‹1 3 6 12 25

Beta Ratio/Efficiencies

Beta Ratios Capture Efficiency
1.01 1.0 %
1.1 9 %
1.5 33.3 %
2.0 50 %
5.0 80 %
10.0 90 %
20.0 95 %
75.0 98.7 %
100 99.0 %
200 99.5 %
1000 99.9 %