As the media absorbs the water (like a sponge) it gives up the water by evaporation to the heated air passing through it.
(the media; absorbs; the water (like a sponge) (it; gives up; the water; to the heated air) (the heated air; passing; through it)
the media it the heated air
absorbs gives up passing
the water (like a sponge
the water to the heated air
through it