Mrs. Puff is a boating school instructor, and she teaches at Mrs. Puff's Boating School. She is a white puffer fish, accented with green fins and curly, yellow hair. She is usually clad in a red skirt and a blue shirt. She teaches students how to drive, and she often gets hurt by SpongeBob's reckless driving. Mrs. Puff inflates herself whenever something bad happens to her. She is said to have a history of mental instability. She had a husband once, Mr. Puff, who turned into a lamp. She has a pet snail which she had since she was a little girl.