The Single Chamber Touch Screen System automates a three-stage euthanasiacycle: charging, dwell time and exhaust. At the start of the cycle, the doors automatically lock and can’t be unlocked until CO 2 evacuation is complete. The clear polycarbonate doors provide visibility while the front-loading, swing-down design offers easy cage access. Airtight, gasket sealed doors prevent gas leakage during operation and the manifold design ensures even gas distribution. The Touch Screen makes operating the system very easy. Optionally, personal passwords are necessary to start the system. Time settings for species used can be predefined by the administrator. The user can select from this list and the screen will then show the stage and the remaining stage- and cycle time.