A liquid recovery filter comprising: a filter shell (212, 312, 412, 512, 612) having an upper end (214, 314, 414, 514, 614), a lower end (216, 316, 416, 516, 616) opposite the upper end (214, 314, 414, 514, 614), and a cylindrical wall extending between the upper end (214, 314, 414, 514, 614) and the lower end (216, 316, 416, 516, 616), the shell (212, 312, 412, 512, 612) defining an internal volume (228, 328, 428, 528, 628); a filter element (230, 330, 430, 530, 630) disposed within the filter shell (212, 312, 412, 512, 612), whereby a gap formed between the shell (212, 312, 412, 512, 612) and the filter element (230, 330, 430, 530, 630) defines an upstream section (234, 334, 434, 534, 634) of the internal volume (228, 328, 428, 528, 628), the filter element (230, 330, 430, 530, 630) having an inlet side and an outlet core (232, 332, 432, 532, 632), the inlet side of the filter element (230, 330, 430, 530, 630) communicating fluidly with the upstream section (234, 334, 434, 534, 634); an inlet passage (218, 318, 418, 518, 618) disposed through the filter shell (212, 312, 412, 512, 612), the inlet passage (218, 318, 418, 518, 618) communicating fluidly with the upstream section (234, 334, 434, 534, 634); an outlet passage (220, 320, 420, 520, 620) disposed through the filter shell (212, 312, 412, 512, 612), the outlet passage (220, 320, 420, 520, 620) communicating fluidly with the outlet core (232, 332, 432, 532, 632) of the filter element (230, 330, 430, 530, 630); characterized by a downstream vent/purge port (222, 322, 422, 522, 622) disposed through the filter shell (212, 312, 412, 512, 612) with an inline gas filter (236, 336, 436, 536, 636) disposed in the downstream vent/purge port (222, 322, 422, 522, 622), the downstream vent/purge port (222, 322, 422, 522, 622) communicating fluidly with the outlet core (232, 332, 432, 532, 632) of the filter element (230, 330, 430, 530, 630), wherein the vent/purge port (222, 322, 422, 522, 622) is configured to permit the introduction of a gas under pressure, sterilized by the inline gas filter (236, 336, 436, 536, 636), into the outlet core (232, 332, 432, 532, 632) to purge filtered liquids, retained in the outlet core (232, 332, 432, 532, 632) after a filtering operation is terminated, out of the outlet passage (220, 320, 420, 520, 620) to recover the retained filtered liquids. a filter shell (212, 312, 412, 512, 612) having an upper end (214, 314, 414, 514, 614), a lower end (216, 316, 416, 516, 616) opposite the upper end (214, 314, 414, 514, 614), and a cylindrical wall extending between the upper end (214, 314, 414, 514, 614) and the lower end (216, 316, 416, 516, 616), the shell (212, 312, 412, 512, 612) defining an internal volume (228, 328, 428, 528, 628); a filter element (230, 330, 430, 530, 630) disposed within the filter shell (212, 312, 412, 512, 612), whereby a gap formed between the shell (212, 312, 412, 512, 612) and the filter element (230, 330, 430, 530, 630) defines an upstream section (234, 334, 434, 534, 634) of the internal volume (228, 328, 428, 528, 628), the filter element (230, 330, 430, 530, 630) having an inlet side and an outlet core (232, 332, 432, 532, 632), the inlet side of the filter element (230, 330, 430, 530, 630) communicating fluidly with the upstream section (234, 334, 434, 534, 634); an inlet passage (218, 318, 418, 518, 618) disposed through the filter shell (212, 312, 412, 512, 612), the inlet passage (218, 318, 418, 518, 618) communicating fluidly with the upstream section (234, 334, 434, 534, 634); an outlet passage (220, 320, 420, 520, 620) disposed through the filter shell (212, 312, 412, 512, 612), the outlet passage (220, 320, 420, 520, 620) communicating fluidly with the outlet core (232, 332, 432, 532, 632) of the filter element (230, 330, 430, 530, 630); characterized by a downstream vent/purge port (222, 322, 422, 522, 622) disposed through the filter shell (212, 312, 412, 512, 612) with an inline gas filter (236, 336, 436, 536, 636) disposed in the downstream vent/purge port (222, 322, 422, 522, 622), the downstream vent/purge port (222, 322, 422, 522, 622) communicating fluidly with the outlet core (232, 332, 432, 532, 632) of the filter element (230, 330, 430, 530, 630), wherein the vent/purge port (222, 322, 422, 522, 622) is configured to permit the introduction of a gas under pressure, sterilized by the inline gas filter (236, 336, 436, 536, 636), into the outlet core (232, 332, 432, 532, 632) to purge filtered liquids, retained in the outlet core (232, 332, 432, 532, 632) after a filtering operation is terminated, out of the outlet passage (220, 320, 420, 520, 620) to recover the retained filtered liquids.