PURPOSE: To provide a container with high absorbing and washing efficiency capable of removing a danger of gas flow interruption and pressure rise by a mechanism wherein a gas containing specific components or powders is introduced into a container having two or more introducing passage outlets at positions with different liquid pressure.

CONSTITUTION: A leading end of a gas introducing pipe 21 is divided into two sections and an outlet with high liquid pressure is formed as a single opening portion having a cross area almost same to the cross area of an introducing pipe 21 and an outlet 23 with low liquid pressure positioned at an upper vertical position from an outlet 24 is formed as an assembly of plural pores or a filter. A gas containing specific components or powders is sent from an introducing pipe 21 and all gas is sent into a liquid from an outlet 23, thereby, powders are removed by a filter and component gas is absorbed by a liquid. The powders not passed through a filter are dropped from an outlet 24 and piled at a container bottom designated as 27.