An
anesthesia apparatus for anesthetizing a slaughtered animal prior to slaughtering wherein the
anesthesia apparatus comprises a chamber for receiving the slaughtered animal, the chamber having an upper section, a lower section and a transition region separating the lower section from the upper section, and a first circulation
system for circulating the chamber, each of the upper and lower sections is shaped and dimensioned to accommodate one or more slaughtered animals, the transition region allows the slaughtered animals to be transferred between the upper and lower sections, each section having a proximal end adjacent the transition region and a distal end opposite the proximal end, where the upper and lower sections are configured to be filled with a respective gas mixture, and a first circulation
system for circulating a first one of the respective gas mixtures, the first gas mixture occupying a first one of the upper and lower sections, the second gas mixture occupying a second one of the upper and lower sections, the second gas mixture occupying a second one of the upper and lower sections, and the third gas mixture occupying a second one of the upper and lower sections, the first circulation
system is configured to generate an
airflow within the first section away from the transition region and toward a distal end of the first section.