In a first, an American woman used a suicide pod to take her own life. The process took place in Switzerland. It’s done by pumping in only nitrogen gas, so the person will lose goes dizzy, loses consciousness and eventually dies. Enter futurama memes.
Ya CO2 is basically the feeling of normal suffocation. Might as well hold a plastic bag over their head.
Faster if it’s pumped in, but yeah, still terrible.