Is it possible to see room noise? In Adobe Audition, using any of the visualisation/analysis tools, is is it possible to see and isolate, then remove room/background noise?

Was wondering if there are certain frequencies that human voice operates within thus allowing the rest to be minimised or deleted.
Audition has specialized tools that allow you to isolate and remove noise. Have you looked at the official documentation? (Especially the capture noise print/remove noise combo)

https://helpx.adobe.com/audition/how-to/remove-noise-audio-files.html