Pack of 100 standard economy filter papers General filtration in the 8-10µm particle size range Used in qualitative analytical techniques to determine and identify materials Great for use in distillation experiments in schools or in coffee filtering at home Packaging may vary from photo shown Pack of 100 standard economy filter papers. General filtration in the 8-10µm particle size range. Used in qualitative analytical techniques to determine and identify materials. Great for use in distillation experiments in schools or in coffee filtering at home. Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control. Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments.