Dr. Horatio Quentin Quack, chief surgeon of Mobotropolis Hospital, dressed in a blue-green surgical gown, white surgical gloves and a light blue-green surgical cap, and is breathing in his white JFYCO 6100 duckbill-style disposable surgical respirator mask over his nose and mouth, to protect him from any harmful airbourne particles and nasty germs.

Quack wore disposable respirator masks sometimes like when he visited Dr. Sally Acorn's operating room and helped Sally perform surgeries during those times.