Filter Bag Design and Materials

Mesh Designs (Surface Filtration)

Mesh materials consist of single (monofilament) or multifilament woven designs with calibrated openings.

• Monofilament: Nylon and Polypropylene (5 to 800 micron).
• Multifilament: Polyester; provides some depth filtration.

Needle Felt (Depth Filtration)

Needle Felt is the most common material for 1 to 200 micron nominal retentions. Its structure provides high particle-holding capacity.

• Capacity: Thicker felt lasts 3 to 5 times longer than standard bags.
• Advanced Designs: Enables shapes like HAYFLOW and MAX-LOAD.

Melt-Blown (Absolute Filtration)

Manufactured from extruded filaments for 99.9% efficiency. Primary products include LOFCLEAR, ACCUGAF, and PROGAF.