Portable controlled atmospheric stunning device

A system for stunning an animal comprising:

• a canister for holding a gas, the canister sized to be carried by a user;
• a hose having a first end and a second end, the hose being connected at the first end to the canister;
• and
• a hand-held hood connected to the hose at the second end of the hose, the hood including a handle, a chamber sized and configured to accommodate a head of the animal, an on/off switch, a closed end, an open end, and a flexible gasket substantially covering the open end, wherein the flexible gasket includes a slit for allowing passage of the head of the animal into the chamber while allowing a sufficient amount of the gas to be retained in the chamber to stun the animal.

A hand-held hood for stunning an animal, the hood comprising:

• a chamber sized and configured to accommodate a head of the animal;
• a handle, the handle including an exit port leading into the chamber, an input port configured to connect to a source of gas, and a passageway in the handle between the input port and the exit port;
• an on/off switch on the handle for controlling a flow of gas into the chamber;
• a closed end defining a portion of the chamber;
• an open end;
• and
• a flexible gasket substantially covering the open end.