Another company that can deliver excellent products and service is the company known as Electrolux that has offices around the world. The firm holds a 25% market share in the home appliances industry satisfying customers during cooking, while working on the laundry and cleaning around the home. Nobody can forget Hoover, which many claim to be synonymous with vacuum cleaner similar to how Xerox is well associated with copying machines. The rotating brushes at the bottom of panasonic vacuum cleaners do the job of loosening the dirt so it will be suctioned by the inlet of the unit by constant activity of air stream of the fan. Once loose, the particles are light enough to be forced inside by the pressure. An expandable bag serves as filter to collect all items the inlet can take. People will notice that vacuum cleaners regardless of size have a filter bag in the unit that has to be replaced when it is full. James Dyson invented a model that did not need this, which manufacturers in Europe were not in favor of so this person promoted it elsewhere until a Japanese firm liked the idea and the company took off. But, since Booth's time, the face, shape, size, design and engineering of the vacuum cleaning machine have changed tremendously. The basic idea is still there but due to the changing fashions, the development of science and advances in technology, vacuum cleaners have evolved to be a revolutionary invention that altered forever the way people clean. Dirt carpets will not come along with just wiping, and that is what advantage bagless and conventional vacuum cleaners can do. By not spattering dusts around, vacuum cleaning helps in removal of harmful allergens and minute pollens existing in fabrics, especially in the carpets. It takes experience and comparison to know which vacuum cleaner works best to suite your needs. The Eureka has also been tested which prevents this from happening. Filters are still needed in the vacuum cleaner. Those on the Eureka can be brushed or washed a few times before the individual will have to buy a new one to replace it. Those who are concerned about the price don t have to worry since it won t cost an arm or a leg since this is just under $10.