This seems really strange, since a nebulizer is something that you wear on your mouth and you breathe into, and I’m not sure how it would be hygienic to share that with someone.
assitant
So you're curious about hygeine, and that you're interested in that, so you want to help someone else by sharing the nebulizer?
assistant
can i share a nebulizer?
user
Oh, you need to give a nebulizer to someone else?
assistant
yeah
user
Is it your responsibility to give someone a nebulizer?
assistant
no but i want to be helpful
user
So do you want to help, or is this your responsibility?  Are you in a position to help or are you in a position of having responsibility for something? 
Does your goal here depend on other people or not?
assistant
Well I'm curious from a hygeine standpoint.
user