A dispensing screen for dispensing, by evaporation, volatile materials applied thereto, is provided. The screen comprises a sheet of material and diverting means formed in the plane of the sheet. The diverting means form a minimum path length along the length of the sheet between at least a portion of a first edge and an opposing second edge of the sheet, which minimum path length is longer than the distance between the first and second edges along the surface of the sheet. A dispensing apparatus is also provided, which in embodiments includes the dispensing screen of the invention, and in embodiments includes a sink for capturing un-evaporated volatile material.提供一種分配濾網,其用於藉由蒸發來分配塗覆至其之揮發物質。該濾網包含一薄片材料,及形成於該薄片之平面中之分流手段。該分流手段沿著該薄片之長度在該薄片之一第一邊緣之至少一部分與該薄片之一相對第二邊緣之間形成一最小路徑長度,該最小路徑長度比該第一邊緣與該第二邊緣之間的沿著該薄片之表面之距離長。亦提供一種分配裝置,其在具體實例中包括本發明之分配濾網,且在具體實例中包括一用於捕獲未蒸發物質之槽。900...分配單元910...儲集器912...接觸墊914...圓柱形套管915...插塞916...圍繞物917...空氣通道918...頂蓋920...濾網930...槽932...中心圓柱形中心部分934...外殼936...多孔塑膠940...吸液芯950...連接器960...上部支撐件965...盤狀物967...環形多孔墊圈970...下部支撐件974...環形導管975...支撐件976...環形密封環978...排放元件979...夾鉗手段
