Exhaust port location on enclosure

I’m wondering about the location of the exhaust hose on the enclosure. I have an Artisan on order and I’m laying things out, planning where the exhaust hose will go.
I’m a little surprised that the hose is located at the bottom of the enclosure. Wouldn’t it make more sense for it to be near the top? I would think the toxic fumes would rise. Is it located low so that it won’t remove too much warm air, affecting the print quality?

I don’t know about the artisan, for the sm2 enclosure, i rotated it 180 degrees and put the exhaust on the top. I have it in the basement and exhausting outside.

Thanks, that certainly makes sense to me!