If one of the guyz suggested a pair of shoes would lower the temp of the air, I would be willing to try it.
Shoes or cheese is likely to stink up the place too
SOMETHING = something passive, I don`t think a sink would do much good as it would probably work best with solid contact - I dunno, air into a metal... A material, maybe a wired wool ..
I`m aware that there are better options to make cooling efficiency optimal, but, refering to the op, I`m trying to bare with the issue as stated in the op. i.e. keep the IN/OUT as they are.