Ionic means ozone generation. The idea with charged filtration is that microbic particles are attracted to the filter. However, ozone is a lung irritant.
> Ozone generators are a completely different thing
They are, but ionizing air cleaners still generate ozone even though they are different than “ozone generators”. [0, again]
> and air ionizers must conform to low ozone emission standards.
No, only the small minority that claim health benefits in a manner which brings them under FDA medical device regulatory authority do. [0, again.] But even those so regulated in ozone emissions are net ozone generators.