At Aragen, our typical steps to purify and formulate human 190 from transient system cultures up to 2 L involve clarification of harvest, affinity purification using Protein A and a combination of dialysis and concentration using centrifugal filter units for formulation. This platform can take from 5 to 7 days to complete, including assessment of the formulated antibody for purity. Recently introduced technologies such as Protein A membrane devices and TFF systems capable of handling ultrafiltration and diafiltration of samples as low as 1 mL have tremendously decreased the turnaround time down to 3 days. The typical and improved platforms will be compared.