PROBLEM TO BE SOLVED: To provide an ejector for ejecting a mixed gas wherein a liquid is added, capable of intermittently ejecting a prescribed amount of a mixed gas wherein a liquid is added, onto an object whereon the mixed gas is to be ejected.SOLUTION: The mixed-gas ejector including a gas supply means 2 with a carbon dioxide cylinder B attached thereto, a chemical liquid supply means 3 with a chemical liquid container M attached thereto, an ejection means 5 that mixes a high pressure gas with a liquid, supplied thereto, and ejects the resulting mixed gas, and an operation means 1 that is operated to introduce a high pressure gas and a liquid into the ejection means 5, whereby a mixed gas comprising a liquid is obtained from the ejection means 5, is characterized by generating pressurized air by the operation means 1 by operating its operation push button, activating an operation member with respect to the gas supply means 2 and the chemical liquid supply means 3 by virtue of the generated pressurized air to obtain a prescribed amount of the high pressure gas and the liquid, and ejecting the prescribed amount of the mixed gas pulse-wise from a nozzle, i.e., the ejection means 5.COPYRIGHT: (C)2010,JPO&INPIT【課題】液体を添加した定量の混合ガスを間欠的に被噴射体に噴射させる液体を添加した混合ガスの噴射装置を得る。【解決手段】炭酸ガスボンベBを取り付けたガス供給手段2と、薬液容器Mを取り付けた薬液供給手段3と、供給された高圧ガスと液体を混合して噴射する噴射手段5と、操作手段1とから成り、操作手段1の操作により高圧ガス及び液体を前記噴射手段5に導入し、噴射手段5から液体を含む混合ガスを得る装置であって、操作手段1は操作押釦の操作により圧縮空気を生成し、この圧縮空気によりガス供給手段2及び薬液供給手段3に対する操作部を作動して定量の高圧ガス及び液体を得て、噴射手段6であるノズルから定量の混合ガスをパルス的に噴射する。【選択図】図1