A system of four blood bag with two filters for Leukocyte depleting of whole blood - the whole blood is centrifuged and passing through two filters are prepared Leukocyte depleted red cells preserved for 42 days by SAGM solution (saline-adenine-glucose-mannitol) and Leukocyte depleted plasma enriched with platelets, which are re-centrifuged in order to obtain a separate plasma and platelets.
