Attached is an older video clip of my Airpura air purifier running with my MTH engine at full smoke. The Airpura unit was recommended from a fellow forum member. It's a little hard to see. The smoke rises toward the ceiling but then shifts downward toward the black air purifier on the floor. Once it travels to it, it disappears. And within a few hours after running trains the smell of smoke is completely gone. It also reduces dust and works great when you're painting or use foam burning tools or soldering.
As I stated earlier, I like it because you can physically see where the smoke is and disappearing, allowing you to stay away when you don't want to breathe it.
