Like many vacuum cleaners, the modern Rainbow Cleaning System uses a two-stage filtration system. Most vacuums though, use two solid filters. The first filter is a bit coarser, in the vain hope that it will take longer to clog, then the second filter does its best to clean the air coming out of the vacuum. The thing is though, even that second filter can’t be as good at catching the finest particles of dust and allergens as it could be, or it, too, would clog. A Vortex of Water to Filter the Air Instead of a filter of fiber, foam, paper, or cloth, all of which can easily get clogged, the Rainbow Cleaning System uses a swirling vortex of water, powered by our state-of-the-art Hurricane brushless stepped-induction motor. Wet dust can’t fly—at least most forms of it can’t—so the vast majority of dust, debris, dirt, hair, and other things you’d rather not have on your floor get trapped by the water, instead of clogging up your filter. At the end of each session, replacing the filter with a brand-new one that’s ready to go at 100% the next time, is as easy as dumping out a small bowl of water, rinsing it, and putting it back! And because the water filtration system is continually renewed, by the vortex motion while you vacuum, and with fresh water each time you bring the Rainbow out to use it, it remains completely effective at trapping dirt without reducing suction. A True HEPA Second Stage Because a few types of dust, such as drywall, masonry dust, or metallic particles, are unaffected by water, and to catch any stray microscopic particles of allergens or dust that do make it through, the Rainbow has a second stage at the air outflow, a genuine HEPA filter, of the same type and quality as those used in the world’s best dedicated air filters. Ordinarily, a filter this good would just get clogged in a matter of seconds. But since the water vortex is so good at trapping almost all of the dust (so good that previous generations of Rainbow didn’t even use a second stage!), our HEPA filter can go years between services, without clogging or reducing suction power. The Perfect Combo Water is nature’s best cleaner and filter. HEPA filters are the best filters technology has yet created. Combine them, and the Rainbow uses the perfect one-two punch to eliminate virtually all traces of dust, allergens, and particulates that exit the unit, leaving only fresh, clean, pure air coming back into your living space. It’s so good that the Asthma and Allergy Foundation of America recently awarded the latest Rainbow Cleaning System with a certification as being asthma & allergy friendly. Even if you don’t suffer from either of those afflictions, everyone can benefit from cleaner air, and a healthier living environment, and that’s why the Rainbow Cleaning System is so much more than “just a vacuum cleaner!”
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