PROBLEM TO BE SOLVED: To provide a gas filter having excellent pollutant removal performance, with low pressure loss.SOLUTION: The honeycomb gas filter has an interior wall composed of active carbon paper. In the cells for constituting the honeycomb, the proportion of cells having one closed end is 50 to 100% and the proportion of cells having both open ends is 0 to 50%. In the cells having one closed end, the ratio of the cells having a closed inlet of gas to the cells having a closed outlet of gas (inlet/outlet) is 30/70 to 70/30. The active carbon paper includes 10 to 90 mass% of active carbon and 10 to 90 mass% of a binder. The active carbon paper has a weight of 20 to 200 g/m. The active carbon has an average particle diameter of 1 to 100 &mu；m.【課題】汚染物質の除去性能に優れ、圧力損失の低いガスフィルターを提供する。【解決手段】フィルター内部の壁面が活性炭紙で構成されるハニカム状のガスフィルターであって；ハニカムを構成するセルのうち、片端が閉塞したセルの割合が５０～１００％であり、両端が解放されたセルの割合が０～５０％であり、片端が閉塞したセルのうち、ガスの入口が閉塞したセルと、ガスの出口が閉塞したセルの割合（入口／出口）が３０／７０～７０／３０であり、活性炭紙が、１０～９０質量％の活性炭と１０～９０質量％のバインダーとを含み、活性炭紙の目付が２０～２００ｇ／ｍ２であり、かつ活性炭の平均粒径が１～１００μｍであることを特徴とするガスフィルター。【選択図】図１
