Like all good makers, Chialiang Chang wanted a vacuum cleaner to keep his desk clean, but would rather create one using discarded pieces of junk, instead of buying it from a store.

He has shared the process of how he modified a hair-dryer from blowing air into sucking air. After unscrewing it, he removed all components besides the electric motor and the fan. He then reversed the motor and sawed off any part that blocked the reversed fan.

Next up, he created the dust chamber using an old container that had been discarded because its lid had some holes. He glued the lid to a piece of wood and then used a cylindrical HEPA air filter, and attached it to the inside of the lid.