NK-MAX Purification Factor is a specialized reagent used during the separation of mononuclear cells from fresh peripheral blood or cord blood. It is designed to deplete CD3⁺ cells from the isolated PBMC population, thereby increasing the proportion of CD3⁻CD56⁺ NK cells after expansion. When used in combination with Shownin Biotech's NK Cell Expansion Kit (Cat. No. RP03030), NK-MAX Purification Factor enables the generation of NK cells with exceptionally high purity, with CD3⁻CD56⁺ expression exceeding 95% and CD3⁺ cells comprising less than 1% of the final population.