Anion exchange membranes (AEM) are well studied in the context of fuel cells and water electrolyzers, as they permit the use of non-noble catalysts. However, such alkaline systems have a notable drawback of carbonation when they are operated using atmospheric air, which is known to reduce the anion conductivity of the membrane. The (bi)-carbonate ions are removed from the membrane through the migration of hydroxide ions, also known as the self-purging mechanism. This carbonation effect of AEMs can be utilized to selectively remove CO2 from a dilute gas mixture (e.g., flue gas or air) and transport it across the membrane, as shown in Figure 1.Effective CO2 transport across the membrane can be enabled using hydrogen evolution and oxidation reactions in the presence of CO2 and alkaline media. This methodology differentiates itself from other membrane-based separation techniques, as it allows for low concentrations (<1%) of CO2 to be removed at a high fraction (>90%) from a gas stream. Significant developments are required to optimize such a system, reduce material costs and cell overpotentials, and allow for long-term operation.We performed preliminary experiments proving the concept of an electrochemical CO2 separation device utilising AEMs. Steady-state galvanostatic experiments with on-line non-dispersive infrared gas analysis have demonstrated the clear relationship between current density, cell potential, and CO2 pumped across the membrane for a wide range of inlet CO2 concentrations. Faradaic efficiencies for CO2 transport are strongly dependent on the inlet CO2 concentration and current density. Considerations for further development are discussed.Figure Caption: Schematic of AEM CO2 separator Figure 1