The Rainbow Cleaning System is the latest evolution in the history of a truly revolutionary home cleaning system. Based on the principle that "Wet Dust Can't Fly™", the Rainbow uses a unique water-based filtration system to effectively remove dirt and airborne particles from your home.The Rainbow Cleaning System is manufactured by Rexair LLC, a Michigan-based company that has been in business since 1936. The Rainbow Cleaning System has been the exclusive product of Rexair LLC for more than 80 years. Its legendary water-based filtration system has made the Rainbow known the world over. Today, the Rainbow Cleaning System is sold and enjoyed in many countries around the world.more...See more text