To enhance efficiency in washing a washing object.SOLUTION: A washing apparatus includes: a washing part to wash gas； an inflow part through which gas as a washing object flows into the washing part； an outflow part through which gas after being washed by the washing part flows out from the washing part； a first flow path through which the gas flown out from the outflow part flows again into the inflow part； and a second flow path through which the gas flown out from the outflow part flows out to the outside.SELECTED DRAWING: Figure 1【課題】洗浄対象の洗浄の効率を高めること。【解決手段】本発明は、気体を洗浄する洗浄部と、洗浄部に洗浄対象の気体を流入する流入部と、洗浄部から洗浄部での洗浄後の気体を流出する流出部と、流出部から流出した気体を流入部へ再流入させる第１経路と、流出部から流出した気体を外部へ流出させる第２経路とを有することを特徴とする。【選択図】図１
