A nebulizer system comprising: a bottle that has a bottle mouth on top thereof and stores liquid therein; a heater device that is connectable to the bottle mouth; and a nebulizer adapter that is connectable to the heater device, wherein the bottle includes a dip tube that is dipped into the liquid stored therein, an upper end portion of the dip tube being disposed inside a circumferential wall of the bottle mouth with a clearance communicating between an interior and an exterior of the bottle via the bottle mouth, the nebulizer adapter includes a nozzle member that has an orifice for injecting gas, and an aerosol-forming member in a corresponding position with the orifice, the aerosol-forming member sucking up the liquid in the bottle via the dip tube and heater device by a stream of gas injected from the orifice, and generating fine aerosol from the sucked liquid, the heater device includes: a water conduit in which a first end portion thereof is connected to an upper end portion of the dip tube and a second end portion thereof is connected to the aerosol-forming member, a heating unit for heating the water conduit, and a drain pipe in which a first end thereof is positioned to face the clearance, the drain pipe flowing back the liquid that is not aerosolized in the nebulizer adapter into the bottle via a second end portion thereof, characterized in that the dip tube comprises: a tube main body; and a fixing section for positioning the dip tube inside the bottle, the fixing section being connected to a first end of the tube main body, the fixing section comprising: a cylindrical annulus that is disposed on the inside of the bottle mouth, the clearance being provided between an inner circumferential surface of the annulus and an outer circumferential surface of the tube main body; and a holding member for holding and securing the tube main body on the inside of the annulus. a bottle that has a bottle mouth on top thereof and stores liquid therein; a heater device that is connectable to the bottle mouth; and a nebulizer adapter that is connectable to the heater device, wherein the bottle includes a dip tube that is dipped into the liquid stored therein, an upper end portion of the dip tube being disposed inside a circumferential wall of the bottle mouth with a clearance communicating between an interior and an exterior of the bottle via the bottle mouth, the nebulizer adapter includes a nozzle member that has an orifice for injecting gas, and an aerosol-forming member in a corresponding position with the orifice, the aerosol-forming member sucking up the liquid in the bottle via the dip tube and heater device by a stream of gas injected from the orifice, and generating fine aerosol from the sucked liquid, the heater device includes: a water conduit in which a first end portion thereof is connected to an upper end portion of the dip tube and a second end portion thereof is connected to the aerosol-forming member, a heating unit for heating the water conduit, and a drain pipe in which a first end thereof is positioned to face the clearance, the drain pipe flowing back the liquid that is not aerosolized in the nebulizer adapter into the bottle via a second end portion thereof, a water conduit in which a first end portion thereof is connected to an upper end portion of the dip tube and a second end portion thereof is connected to the aerosol-forming member, a heating unit for heating the water conduit, and a drain pipe in which a first end thereof is positioned to face the clearance, the drain pipe flowing back the liquid that is not aerosolized in the nebulizer adapter into the bottle via a second end portion thereof, characterized in that the dip tube comprises: a tube main body; and a fixing section for positioning the dip tube inside the bottle, the fixing section being connected to a first end of the tube main body, the fixing section comprising: a cylindrical annulus that is disposed on the inside of the bottle mouth, the clearance being provided between an inner circumferential surface of the annulus and an outer circumferential surface of the tube main body; and a holding member for holding and securing the tube main body on the inside of the annulus. a tube main body; and a fixing section for positioning the dip tube inside the bottle, the fixing section being connected to a first end of the tube main body, the fixing section comprising: a cylindrical annulus that is disposed on the inside of the bottle mouth, the clearance being provided between an inner circumferential surface of the annulus and an outer circumferential surface of the tube main body; and a holding member for holding and securing the tube main body on the inside of the annulus. a cylindrical annulus that is disposed on the inside of the bottle mouth, the clearance being provided between an inner circumferential surface of the annulus and an outer circumferential surface of the tube main body; and a holding member for holding and securing the tube main body on the inside of the annulus.