Aerth is a superhero with the innate ability to manipulate air pressure within his personal space (and to an extent, his general environment). Air currents flow differently around him, and he can use this to his advantage, pushing or pulling his body in various directions as he sees fit. This is how he most commonly uses it, but there are other, less straightforward tricks he can pull with it. This includes using air currents to push against things around him, throwing up "walls" of turbulence or creating "cushions" with air pressure differentials. In enclosed spaces that have their own pressures, he can generate a small explosion by 'popping' the room he's in, though this tends to leave him as disoriented as his opponents. He can also, with intense concentration, blow up small to medium-sized pressure-sealed canisters from several feet away.

I saw  Boper9 doing art cards at FWA this year and felt compelled to get a second ACEO of Aerth, trying to see if he could do one that gave more of a sense of his powerset. I think he did a decent job on it, given the concept being a trifle abstract and difficult to explain.

Art by  Boper9.
Aerth is my own creation.