inhalator vs respirator

inhalator and respirator both are nouns.

Word	Noun	Adjective	Verb	Adverb
inhalator	Yes	No	No	No
respirator	Yes	No	No	No

As nouns, inhalator and respirator are synonyms defined as:

inhalator and respirator: a breathing device for administering long-term artificial respiration

inhalator (noun)	respirator (noun)
a dispenser that produces a chemical vapor to be inhaled in order to relieve nasal congestion	a breathing device for administering long-term artificial respiration
a breathing device for administering long-term artificial respiration	a protective mask with a filter; protects the face and lungs against poisonous gases