MOXIE

The Martian Ox-InSitu Experiment works at its destination: 5.4 g/hour but scalable to 12. This is about the same rate as trees, except that the MOXIE also emits carbon monoxide. This means visitors now may get oxygen from carbon-dioxide-heavy planets like Mars and Venus. When they scale it all up.

Mars will be getting its base oxygen from perchlorate salts, or - where the water is unfrozen from pure ice - from good ol' plants. MOXI is for rovers and for Bob Zubrin, who loves carbon monoxide. Unsure about CO₂ scrubbed from an inhabited station or spacecraft; nobody loves monoxide out there.

For Venus in lower altitudes, I feel like Venereans will bias toward a higher g/hour solution, fit for the higher pressures and temperatures there, and for the sulfur chemistry. The MOXIE tech does seem good for high-altitude Venus aerostats, where the experiments would call it "VOXIE" I guess.

PLASMA 8/16/22: This can be improved.