inhalator vs dispenser

inhalator and dispenser both are nouns.

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

As nouns, dispenser is a hypernym of inhalator; that is, dispenser is a word with a broader meaning than inhalator:

inhalator: a dispenser that produces a chemical vapor to be inhaled in order to relieve nasal congestion
dispenser: a container so designed that the contents can be used in prescribed amounts

inhalator (noun)	dispenser (noun)
a dispenser that produces a chemical vapor to be inhaled in order to relieve nasal congestion	a container so designed that the contents can be used in prescribed amounts
a breathing device for administering long-term artificial respiration	a person who dispenses