According to this site:
“Another problem to be overcome from burning salt water is the liberation of toxic chlorine (from the Cl of NaCl/salt). “
Of course, it also says: “They subsequently quietly reported that they surpassed 100% efficiency, which would mean that the system is somehow harnessing environmental energy such as from the zero point or some other yet-to-be discovered phenomenon. “
Yeah, just as an aside, we found that the laws of thermodynamics don’t apply. This would only completely and profoundly revolutionize the lives of just about everyone in the world and every generation after, but it’s kind of a “BTW” item.
I would imagine a lot of the Cl would recombine with the Na, but if there is some free Cl there is also some free Na, which is not too great to inhale, either.