The invention of the Rexair water cleaning vacuum in 1927 represents the first bagless vacuum design introduced into the marketplace. This new model paved the way for the Rainbow vacuum. Within a decade's time, this original design was combined with an air-cleaning technology, which marks the birth of the Rainbow vacuum. Several features help to distinguish the Rainbow vacuum from the many other brands available today.
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Water Cleaning System
The water cleaning system built into Rainbow vacuums replaces the bag design commonly found in other vacuum brands. The system uses a removable reservoir compartment that works to trap suctioned dirt and dust into the water, according to the Vacuum Wizard, a vacuums product reference site. The removable feature makes for easy disposal of dirty water, which is easily refilled and ready for use again. Differences between the Rainbow's water cleaning design and designs that use bags have to do with cleaning ability and convenience. Bag designs quickly collect dust and dirt inside the pores that line the bag. When this happens, the overall cleaning ability of the vacuum declines as dust particles deflect back into a room.
HEPA Neutralizer Technology
The HEPA neutraliser technology found in Rainbow vacuums uses an air filtration system that removes particles from a room's carpets, furniture and exposed surface areas, according to Vacuum Cleaner Select, a vacuum brand comparison site. The name "HEPA" actually stands for high-efficiency particulate air, which indicates the types of air particles a HEPA filter captures. Certain dust particles and irritants, such as mould spores, dust mite residues, pollen, pet dander and fungal spores, exist as microscopic particles that reside in the air as well as on exposed surfaces. By combining the HEPA neutraliser technology with a water cleaning system, Rainbow vacuums operate as a cleaning system that remove harmful air particles as well as dirt accumulations on carpeting and furniture.
Rainbow Model Types
Rainbow vacuums come in three basic styles that include the canister, upright and handheld designs, according to Vacuum Cleaner Select. The canister model comes in the E series and D4 series, which feature the water cleaning system and HEPA neutraliser technology. The upright style consists of two model types, which are the D2 and D3, both of which include the water and air cleaning systems. Prices for the Rainbow canister and upright models run anywhere from £325 to £1,040 and differ in terms of the size of the water reservoir and number of accessories. As the label implies, the handheld model has a portable design that actually attaches to the main unit and allows for manoeuvring when cleaning furniture and stairs. Prices for the handheld unit average around £65.
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