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.
The pod still has to be tested an approved to meet certain standards and regulations to ensure a dignified passing.
Even something as simple as a small leak could prevent the patient from dying, and they may wake back up with severe brain damage, or failing to properly filter out CO2 would cause tremendous distress before their death, or pressure irregularities may induce or trigger various pains. And so on.