C02 makes up 90% of the exhaust. And i have taken that fact into consideration, the two creens wil be replacable. The soda lime will be put in a cartrage and that cartrage will be replacable. And when the soda lime absorbs the c02, it becomes soot.
If you read the entire forum posts, then you would know that this will most likely not be usable in cars until i find a better solution.
Also, soda lime is what they put in gask masks for fire fighters. or at least used to. and thats not a lot of soda lime, so im assuming that the co2 can hold up for a while.
If you would like to see the improved plan, i have made a diagram and put my full plan on a google document here. https://docs.google.com/document/d/1BjC ... dHaQ/view#