2022-06-172022-06-177/10/2022ICES-2022-078https://hdl.handle.net/2346/89616James Knox, Dynetics Technical Solutions, USGregory Cmarik, Jacobs Space Exploration Group, NASA/MSFC/ES62, USJohn Garr, NASA Johnson Space Center, USICES302: Physio-chemical Life Support- Air Revitalization Systems -Technology and Process DevelopmentThe 51st International Conference on Environmental Systems was held in Saint Paul, Minnesota, US, on 10 July 2022 through 14 July 2022.The Four Bed Carbon Dioxide Scrubber technology demonstration is presently operating onboard the International Space Station after being launched in August of 2021 and activated in October. This work describes the ground and flight performance of the 4BCO2 and the methods used to determine performance on the ISS where limited sensor data is available.application/pdfeng4-Bed Molecular SieveGas Phase AdsorptionSpacecraft CO2 RemovalEnvironmental Control and Life SupportInternational Space StationPresentation