Rainbow Rexair Vacuum Cleaner Aromatherapy R-11590 Rexair Rainbow Aromatherapy Collection. 4 Bottles In Pack, each bottle 1.67oz Floral, Spice, Sunshine, Renewal. Add a few drops to the water pan, keeps the house, carpets and the vacuum cleaner smelling nice! Rainbow Canister Vacuum Cleaner Water Fragrances, Genuine Rainbow/Rexair Product. R-11590 Vacuum Cleaner Aromatherapy