Has anyone come up with system of venting your sleds exhaust to the outside when working indoors with the engine running? Corri gated hose with an inline fan maybe? I don't see a good way to connect a hose to the exhaust on the pro.
I have seen several public utilities using a blower and 8-10 flexible hose to provide clean air to sewer and or utility workers, seems something like that could be used to evacuate gasses just as easily.
I have used a shop vac for this purpose. I used two hoses, one to vac, and one in the blow port going out the door. Not a long term setup, but it works for me, just needing it on rare occasions.