The present invention provides an air purifying filter medium having low ventilation resistance, excellent deodorizing performance of aldehydes and hydrocarbon gases, less deodorizing particles, and excellent pleatability. A filter medium for air cleaning according to the present invention is a filter medium in which a uniform mixture of silica gel, activated carbon and a thermoplastic resin in which a hydrazide compound is supported between cover layers is fixed, and the shape of the silica gel and activated carbon is It is a crushed shape. [Selection figure] None【課題】低通気抵抗でアルデヒド類、炭化水素系ガス類の脱臭性能に優れ、脱臭材粒子の脱落が少なくプリーツ加工性に優れた空気清浄用濾材を提供する。【解決手段】本発明の空気清浄用濾材は、カバー層間にヒドラジド化合物が担持されたシリカゲル、活性炭および熱可塑性樹脂の均一な混合物が固定化されてなる濾材であって、シリカゲルおよび活性炭の形状が破砕形状である。【選択図】なし
