with the new build you could use platinum to convert the smoke into co2
only converter, and i know about palladium
a catalytic converter removes unburnt gasolone particles from the exhaust fumes, before releasing them into the atmosphere, using platinum group metals such as palladium, that allow the fuel to burn at a lower temperature. The crackling sound you hear when you shut yor car's engine off is the catalytic converter shrinking, as it expands from the heat. However, I do not know of any way to do this easily in TPT, so +1 from me.
uh not so sure catalyst converts toxic gases to CO2 not to oxygen
Not a new concept, but it's cool, i guess. Count me as +1 because I accidentally clicked downvote...