An applicator is disclosed, which includes a nozzle, the nozzle including a gas channel through which a gas G flows, a plurality of liquid channels which are provided inside the gas channel and through which each of a first liquid and a second liquid flows, and a confluence portion which is located on a downstream side of the liquid channels and in which the flows of the liquids join. Of the gas channel, a portion between the liquid channels and the confluence portion is configured from a single gas-permeable tube composed of a gas-permeable membrane permeable to the gas but impermeable to the liquids. The gas-permeable tube is independently connected to the liquid channels, and has a first independent channel and a second independent channel through which the first liquid and the second liquid flow toward the confluence portion together with the gas flowing in through the gas-permeable membrane.
