Problem to be solved: to provide a filter for vehicle air conditioner to improve the durability and reliability without deteriorating the basic performance. Solution: a reinforcing layer 13 comprising a fiber having a thickness larger than that of the dust collection layer 14 is provided on an upstream surface of a dust collection layer 14 made of a nonwoven fabric having an upstream surface in which air flows into and a downstream surface of which the inflow air flows, constituting a filter for vehicle air conditioning On the other hand, the upstream layer 11 disposed on the uppermost side is the thickness of the fiber of the non-woven fabric to be used, and it is thicker than any other, and the roughness of the fabric of the nonwoven fabric is the most rough, so that the ventilation resistance of the upstream layer 11 in which the air flows is the other layer As compared with the above, the basic performance required for the vehicle air conditioning filter is not impaired. Diagram【課題】基本的な性能を損ねることなく、さらなる耐久性、信頼性の向上を図る車両空調用フィルタを提供する。【解決手段】車両空調用フィルタを構成し、空気が流入する上流面と、その流入した空気が流出する下流面とを有し、不織布よりなる集塵層14の上流面に、集塵層14の繊維よりも太い繊維を用いてなる補強層13が隣接して配設される一方、最上流側に配設される上流層11は、用いられる不織布の繊維の太さが、他のいずれのよりも太く、かつ、不織布の網目の粗さも、最も粗いため、空気が流入する上流層11の通気抵抗は、他の層と比較して最も低く、車両空調用フィルタに求められる基本的な性能を損ねることがないものとなっている。【選択図】図2
