Do you know what astronauts breathe on the ISS? Is the air brought from the Ground or generated at the station?
In fact, there is no correct answer. On the ISS, oxygen is generated from water, which in turn is condensed from the air or brought from the planet. And there are oxygen tanks on board just in case. Carbon dioxide is collected by the zeolite absorption system ” Air ” and thrown overboard. And the Electron system decomposes water into oxygen and hydrogen. Approximately 1 liter of water is spent per day per person.
