[@Inertia]Sure, now that his quirk is straightened out. Just include the gloves somewhere and specify that his actual power is manipulating the oxygen density. 

Because of his limits, the explosions can be fairly powerful--not as much as, say, a grenade or a pack of C4, but enough that it can rupture eardrums, break bones, and burn for a very short period of time around 1600 degrees F (or around 870 C), and things of that level. That, of course, is just full power, and by using more control he could lower the intensity if he wanted to non-lethally harm someone.