A kind of air freshener includes a shell and one material carrier. Shell includes a upper cover and a lower cover,The installing mouth of an accommodating space and a what accommodating space one end is collectively formed in upper cover and lower cover,Upper cover is equipped with a connecting hole,One end of connecting hole extends to form one towards the other end and supports only arm; The what accommodating space is arranged in agent material carrier,Agent material carrier includes a plastic jacket and a barrier film,Plastic jacket includes a holding part to accommodate an aromatic,Barrier film is laid with one side of the what holding part towards lower cover,Holding part includes a raised section and a planar section,The high what planar section in raised section; Wherein setting what in raised section supports only between one end of arm and the other end of connecting hole,The what raised section is flexibly supported to only arm.一種空氣清新器包括一殼體及一劑料載體。殼體包括一上蓋及一下蓋,上蓋及下蓋共同形成一容置空間及一於容置空間一端的裝設口,上蓋設有一卡合孔,卡合孔的一端朝另一端延伸形成一抵止臂;劑料載體設置於該容置空間,劑料載體包括一塑料罩及一阻擋膜,塑料罩包括一容置部以容置一芳香劑,阻擋膜鋪設於容置部朝向下蓋的一面,容置部包括一凸起段及一平面段,凸起段高於平面段;其中凸起段設置於抵止臂的一端及卡合孔的另一端之間,抵止臂彈性地抵於該凸起段。