A biological fluid filter is shown for filtering biological products into their therapeutically valuable components. The biological fluid filter (20) can use a wide variety of filter media and filter a wide variety of biological fluids without being limited by the CWST of the media. The construction comprises an inlet section (21) and an outlet section (22) with a filter media (39) separating the inlet section (21) from the outlet section (22). The construction may also have a first vent chamber (27) and a second vent chamber (30).