ventilating system vs ventilation system

ventilating system and ventilation system both are nouns.

Word	Noun	Adjective	Verb	Adverb
ventilating system	Yes	No	No	No
ventilation system	Yes	No	No	No

As nouns, ventilating system and ventilation system are synonyms defined as:

ventilating system and ventilation system: a mechanical system in a building that provides fresh air

Other synonyms of ventilating system include ventilation.

ventilating system (noun)	ventilation system (noun)
a mechanical system in a building that provides fresh air	a mechanical system in a building that provides fresh air