Buying a patent for Spangler, Hoover re-equipped tannery in the company for the production of vacuum cleaners and began to improve the first model. As a result, work of engineers, Hoover vacuum cleaners weight was only 20 kg, which is two and a half times less than rival models. However appliances cost was quite high, and could afford a novelty not everyone. Weight vacuum: who less? In parallel with Hoover on the development of devices for the absorption of dust and engineers worked from Siemens. Starting in 1906 with the 150-pound unit is being moved on wheels, the company began to work on creating more compact models available a wide range of consumers. For more specific information, check out Diamonds.
And over time, Siemens vacuum cleaners became more comfortable and less severe. At that time, Europe also did not remain on the sidelines. Swede Axel Wehner-Gren, who founded a company later Electrolux, made a huge step towards weight loss of vacuum cleaners, by replacing the fan pump. Lux model 1 instead of 20 kg weight was 14, which significantly increase its popularity. However, this success was the use of a vacuum cleaner Electrolux, known as Model V. It was she who became the prototype of the Soviet missiles, long enjoying huge success in the Soviet Union. Model had metal runners, with which it can be moved around the floor. But vacuum cleaners have become more mobile when they were put to the wheels. Vacuum different needs after a long lull, caused by World War II, vacuum cleaners have improved more and more.