Question How much carbon monoxide byproduct does Moxie produce when generating oxygen. 4CO2--->4CO+2O2 ? 4 mols CO2 making 4 mols CO and 2mols Oxygen?

[Joe60]

Moxie is great but Carbon Monoxide is odourless and deadly. So how will you deal with it?
Are we talking of 4CO2 ->4CO+2O2 ?

Secondly, can Perchlorates in the Martian soil be used to produce Oxygen or is it more risky to do this?
Thank you