DSF

Hi. Has anyone experienced any chest or throat problems from using the big red 3d machine?
When the inner lid is raised there does seem to be a mist of some sort...is it steam or something else?
Anyway, i was wondering if anyone has had these symptoms from extended use for like 7 hours continuously?

Not exactly but I did notice a smell when I started using it which was pretty over-powering and gave those symptoms.
There is a venting hose which I now have going outside the building and this has cured the problem.