Exosomes are nanometer sized extracellular vesicles that are released from cells. Exosomes can be used for cell-to-cell communication and contribute to signal transduction and regulation of physiological activities. Many researchers are looking to recover intact exosomes to study their functions and utilize them for diagnostic and regenerative therapies. Exosomes can be purified from cultured cells, serum, bacteria, and other biological fluids. In the case of cultured cells, exosomes are retained in the cell culture media, requiring the removal of cells, cell debris, and other microvesicles. Explore large volume and small-scale exosome purification, filter products for the process, and applications of the products.