PROBLEM TO BE SOLVED: To provide a fluid sterilizing module which is higher in workability, and is capable of reducing more weight and cost.SOLUTION: The fluid sterilizing module 1 includes: an ultraviolet-permeable housing 2 formed with a hollow part capable of introducing a body to be irradiated inside thereof； a light source 6 disposed on the housing 2, and emitting light toward the hollow part； and a covering part 5 covering a region of an outer periphery of the housing 2 where the light source 6 is not disposed, and formed by a sheet member composed of a thermoplastic resin fiber having an optical typical length of 10 nm or more and 500 nm or less, and having a porosity of 20% or more and 90% or less.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2020,JPO&INPIT【課題】加工性がより高く、より軽量化及びコスト低減を図ることの可能な流体殺菌モジュールを提供する。【解決手段】流体殺菌モジュール１は、被照射体を導入可能な中空部が内部に形成された紫外線透過性の筐体２と、筐体２に配置され、中空部に向けて光を照射する光源６と、筐体２の外周のうちの光源６が配置されていない領域に被覆され、光学的代表長さが１０ｎｍ以上５００ｎｍ以下の熱可塑性樹脂製繊維で形成され、空隙率が２０％以上９０％以下のシート状部材で形成される被覆部５と、を備える。【選択図】図１
