public exposure vs airing

public exposure and airing both are nouns.

Word	Noun	Adjective	Verb	Adverb
public exposure	Yes	No	No	No
airing	Yes	No	No	No

As nouns, public exposure and airing are synonyms defined as:

public exposure and airing: the opening of a subject to widespread discussion and debate

Other synonyms of public exposure include dissemination, spreading.

public exposure (noun)	airing (noun)
the opening of a subject to widespread discussion and debate	the act of supplying fresh air and getting rid of foul air
	a short excursion (a walk or ride) in the open air
	the opening of a subject to widespread discussion and debate