Rainbow E Series is a powerful and versatile cleaning system that combines a water-based filtration system with a variety of attachments to clean carpets, hard floors, upholstery, and more. Its unique water filtration system captures dirt, dust, and allergens in water, preventing them from being released back into the air. The Rainbow E Series also features a variety of attachments, including a power nozzle for deep cleaning carpets, a hard floor tool for cleaning delicate surfaces, and an upholstery tool for cleaning furniture and fabrics.