A sterile device designed to separate plasma from the cellular components of whole blood during manual/automated apheresis (the separation, collection, and reinfusion of blood) for donation of blood products or apheresis therapy. It typically contains a microporous membrane (usually with pores 0.2 to 0.6 micrometers) or a hollow-fibre column; it may also be intended to filter microorganisms and/or particles. This is a single-use device.