In 1978, James Dyson was frustrated with his vacuum cleaner's diminishing performance. Taking it apart, he discovered that its bag was clogging with dust, causing suction to drop. Five years and 5,127 prototypes later, he had invented the world's first bagless vacuum cleaner. Today, Dyson’s scientists and engineers continue to refine and improve their vacuums while pursuing perfection for their customers. Dyson vacuums have patented Root Cyclone technology, which means they’re strong and they’re light, and no bags means no loss of suction – ever.