This is such an awful way for animals to be killed. It is extremely cruel and painful. It's actually barbaric. I'm shocked we still have places actually gassing precious animals as if they are worthless. If you know anything ab the process it would make you sick and break your heart that the animals that do nothing but love you are dying a long awful death. It's disgusting and wrong. The people who do this and or stand for it are just horrible. Pls sigh & share. Pls make a strong stand for them.