2021-06-242021-06-247/12/2021ICES-2021-313https://hdl.handle.net/2346/87252Warren Peters, NASA Marshall Space Flight CenterGregory Cmarik, NASA Marshall Space Flight CenterJames Knox, NASA Marshall Space Flight CenterICES302: Physio-chemical Life Support- Air Revitalization Systems -Technology and Process DevelopmentThe 50th International Conference on Environmental Systems was held virtually on 12 July 2021 through 14 July 2021.NASA is reducing the power, volume and mass requirements on future CO2 (Carbon Dioxide) removal systems for exploration missions. To meet this goal, a 4BCO2 flight experiment based on 4BMS (Four Bed Molecular Sieve) technology is under construction and will fly to ISS (International Space Station) for on-orbit performance and reliability testing. The 4BCO2 flight experiment was based on the 4BMS-X EDU (Engineering Development Unit) design, which has been modified to incorporate elements of the flight system. This paper will present the operational performance of the 4BCO2 EDU.application/pdfengCO2NASA4BMS4BCO2ISSPresentation