Types of filter cloth are non-woven and monofilament filter cloth. The filter cloth is customer fabricated with holes to place in the filter frames or sewn into bags to collect unwanted materials.
Cloth filter bags are used on high quality home vacuum cleaners.
Shop-Vac 9010200 Cloth Filter Bag
The filter cloth can range widely in the size particles that can travel through the filter cloth from 1 microns to 100 microns