Haan Gyung-hee was a homemaker in South Korea with a problem: how to keep the floors clean and not spend hours doing it. Because of the ondol tradition of heating homes through the floor, Koreans spend a lot of time on the floor. They sit, sleep, eat, and play on it, so it is very important to keep it clean. Gyung-hee didn't want to be on her hands and knees every day washing the floor, so she invented a steam cleaner.