A dispenser having a cartridge holder. Said cartridge holder has at least oneguide and/ortwist prevention means for a cartridge and/or a cartridge receptacle. Thecartridge holder hasa release element in order to transfer a piercing means of the cartridgereceptacle from aretracted position into an extended position. The cartridge holder has aliquid connection anda compressed-air outlet connected to a compressed-air source.
