James Dyson invented the first commercially successful bagless vacuum cleaner, launching the Dyson brand after thousands of prototypes.
Dyson became frustrated with the declining suction of conventional vacuum cleaners as their disposable bags filled with dust. He adapted cyclone-separation principles, creating a cleaner that used centrifugal force to separate dust from the airflow instead of relying on a porous bag.
He developed more than 5,000 prototypes before introducing the G-Force cleaner in Japan in 1986. The success of that model helped establish Dyson Appliances, which later sold the DC01 in the United Kingdom in 1993.
Dyson did not invent vacuum cleaning itself. Hubert Cecil Booth had patented a powered vacuum cleaner in 1901, and portable cleaners with bags were already common. Dyson's major contribution was making cyclonic, bagless domestic cleaning commercially prominent.