Conversation so far:
What theories were there before scheele?
By the time he was a teenager, Scheele had learned the dominant theory of gases which in the 1770s was the phlogiston theory.
What did Carl Wilhelm Scheele do with these theories?
Scheele explained oxygen using phlogistical terms because he did not believe that his discovery disproved the phlogiston theory.
What did Carl Wilhelm Scheele do with this discovery?
When Carl Scheele discovered oxygen he called it fire air as it supported combustion.

Question: what did he find with air?
Self-contained rewrite: What did Carl Scheele find with air?