He graduated from an Australian school, having studied engineering. In 1924 he studied at the Clarence White School of Photography in New York. Bruehl came to America in 1919. He taught at White's school, both in New York and in Canaan, Connecticut, in 1925.
From 1926 to 1966 he had an advertising photography studio in New York. His pictures have appeared in Vogue, Vanity Fair and House and Garden, and he is considered one of the pioneers of color photography.