An assisted dying group expects a portable suicide pod to be used for the first time in Switzerland, potentially within months, providing death without medical supervision, it said Wednesday.

The space-age looking Sarco capsule, first unveiled in 2019, replaces the oxygen inside it with nitrogen, causing death by hypoxia. It would cost $20 to use.

The Last Resort organization said it saw no legal obstacle to its use in Switzerland, where the law generally allows assisted suicide if the person commits the lethal act themselves.

“Since we have people indeed queueing up, asking to use the Sarco, it’s very likely that it will take place pretty soon,” The Last Resort’s chief executive Florian Willet told a press conference.

“I cannot imagine a more beautiful way (to die), of breathing air without oxygen until falling into an eternal sleep,” he added.

– ‘Press this button’ to die –

The person wishing to die must first pass a psychiatric assessment of their mental capacity — a key legal requirement.

The person climbs into the purple capsule, closes the lid, and is asked automated questions such as who they are, where they are and if they know what happens when they press the button.

“‘If you want to die’, the voice says in the processor, ‘Press this button’,” said Sarco inventor Philip Nitschke, a leading global figure in right-to-die activism.

He explained that once the button is pressed, the amount of oxygen in the air plummets from 21 percent to 0.05 percent in less than 30 seconds.

“Within two breaths of air of that low level of oxygen, they will start to feel disorientated, uncoordinated and slightly euphoric before losing consciousness,” Nitschke said.

“They will then stay in that state of unconsciousness for… around about five minutes before death will take place,” he added.

The Sarco monitors the oxygen level in the capsule, the person’s heart rate and the oxygen saturation of the blood.

“We will be able to see quite quickly when that person has died,” said Nitschke.

As for someone changing their mind at the very last minute, Nitschke said: “Once you press that button, there’s no way of going back.”

– First user –

No decision has been made over the date and location of the first death, or who the first user might be.