Made of high quality food grade nylon, this filter material offers high strength, excellent flexibility, and good wear resistance. Key uses - Suitable for food filters, wine, soybean milk, aquarium filtration, and can also be used for window air filters and drinking water filters. Mesh and particle size overview - Mesh refers to the number per square inch. The number of openings on the screen determines the hole size. Higher mesh numbers indicate more holes and smaller openings, and they also correspond to smaller particle sizes. - For reference, the description states: the hole is 50 × 50a, 500 mesh is 500 × 500a. The higher the mesh number, the smaller the particle size. Recommended filtration ranges - Filtering soybean milk: 100-150 mesh/in - Filtering wine and tea impurities: 150-200 mesh/in (first use 100 mesh filters, and then use 200 mesh filters again) - Filtering milk or juice: 200-250 mesh/in - Colour filter: 80-200 stitches/in (floor colour 80-100 stitches/in, surface colour 150-200 stitches/in) Practical use scenarios - Home kitchen filtration: use soybean milk filtration within the 100-150 mesh range to achieve desired texture, or filter juices within 200-250 mesh for clarity. - Beverage preparation: filter wine or tea impurities by starting with 100 mesh and finishing with 150-200 mesh to achieve clean beverage batches. - Filtration for aquariums and water: apply appropriate mesh to ensure clear water while protecting sensitive equipment and maintaining flow; useful for window air filters and drinking water filtration as described.