Do robot lungs that inside the human exist?

Is it possible for robot lungs to exist?

What would be the problems or pitfalls of having to it lungs

By fit inside the human I don’t mean something like an iron lung I mean “able to fit inside and work like a normal set of lungs”

I hope this questy does not come to close to futurism as I am curious if they currently exist

submitted by /u/robyamdam
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