A dispenser adapted to be mounted to a nozzle mechanism of a die casting machine, and adapted to be connected to a release agent source, a water source and an air source, said dispenser comprising: a main body having a mixing chamber that has a spray opening adapted to be connected to the nozzle mechanism of the die casting machine, a release agent input passage that is adapted to be connected to the release agent source, and that has at least one release agent hole portion communicating with said mixing chamber, a water input passage that is adapted to be connected to the water source, and that has at least one water hole portion communicating with said mixing chamber, and an air input passage that is adapted to be connected to the air source, and that has at least one air hole portion communicating with said mixing chamber, and disposed upstream of said at least one release agent hole portion of said release agent input passage and said at least one water hole portion of said water input passage; and two valve units mounted to said main body, each of said valve units being operable to open and close a respective one of said release agent input passage and said water input passage; characterized in that said main body further has a mixing member that has at least a portion disposed in said mixing chamber; said release agent input passage further has a connecting hole portion formed in said mixing member; and said at least one release agent hole portion of said release agent input passage is formed in said mixing member, and communicates with said mixing chamber and said connecting hole portion. a main body having a mixing chamber that has a spray opening adapted to be connected to the nozzle mechanism of the die casting machine, a release agent input passage that is adapted to be connected to the release agent source, and that has at least one release agent hole portion communicating with said mixing chamber, a water input passage that is adapted to be connected to the water source, and that has at least one water hole portion communicating with said mixing chamber, and an air input passage that is adapted to be connected to the air source, and that has at least one air hole portion communicating with said mixing chamber, and disposed upstream of said at least one release agent hole portion of said release agent input passage and said at least one water hole portion of said water input passage; and a mixing chamber that has a spray opening adapted to be connected to the nozzle mechanism of the die casting machine, a release agent input passage that is adapted to be connected to the release agent source, and that has at least one release agent hole portion communicating with said mixing chamber, a water input passage that is adapted to be connected to the water source, and that has at least one water hole portion communicating with said mixing chamber, and an air input passage that is adapted to be connected to the air source, and that has at least one air hole portion communicating with said mixing chamber, and disposed upstream of said at least one release agent hole portion of said release agent input passage and said at least one water hole portion of said water input passage; and two valve units mounted to said main body, each of said valve units being operable to open and close a respective one of said release agent input passage and said water input passage; characterized in that said main body further has a mixing member that has at least a portion disposed in said mixing chamber; said release agent input passage further has a connecting hole portion formed in said mixing member; and said at least one release agent hole portion of said release agent input passage is formed in said mixing member, and communicates with said mixing chamber and said connecting hole portion.