What happens to the CO2 exhaled by the astronauts on the ISS?

The average human exhales almost a kilogram of CO2 (480 liters) each day, and there are six people on the International Space Station. read more

The average human exhales almost a kilogram of CO2 (480 liters) each day, and there are six people on the International Space Station. As the level of CO2 rises, people can experience symptoms such as nausea, dizziness, headaches, and depression. read more

No, ISS can not split the exhaled CO2 to make oxygen. They have various and simple methods than splitting carbon dioxide. The below link explains all the processes and measures taken to have an uninterrupted supply of oxygen on their space shuttle. read more

The “Out of This World” Oxygen/Carbon Dioxide Cycle: The following model illustrates how water, hydrogen, oxygen, and carbon dioxide can be utilized to supply crew members in space with vitally needed oxygen and water. Notice that, unlike traditional CO 2 / O 2 exchange diagrams, there are no plants in this model. read more

CO2 is actually a bigger problem on Earth, where gravity can cause the air to stratify into layers.When my wife was an aquanaut in Key Largo, air was pumped down from the surface and the excess poured out the floor through the moonpool. read more