Abstract: A contactor media includes continuous surface segments, wherein a first continuous surface segment has at least 50% of its surface area follow at least one of: (a) a contour of a first zero-thickness surface having a Gaussian curvature (“Gc”) of ?400 mm?2?Gc<?0.01 mm?2; and (b) a contour of a second zero-thickness surface having at least one principal curvature (ki) of ?20 mm?1?ki<?0.1 mm?1; and wherein the first continuous surface segment provides at least: (a) a total liquid hold-up of between about 1 kg/m3 to about 800 kg/m3 or (b) a static liquid hold-up of about 0.1 kg/m3 to about 800 kg/m3.