Even after dusting, mopping, and wiping down all surfaces, allergen-causing dust mites can be found in every corner of the home, including bedding, sofas, chairs, even curtains. The RS2, designed for use on upholstered furniture, contains a dual filtration system with an HEPA filter, which is proven to capture 99.9 percent of common allergens. Additionally, the powerful built-in ultraviolet (UV) light effectively eliminates bacteria, dust mites, and viruses throughout the home. The combination of UV light technology, suction, and pulsating pads in the patented RayClean Technology® extracts potentially harmful microorganisms to capture allergens and outdoor pollutants, leaving home fabrics and furniture sanitized unlike any other product on the market. With the RAYCOP RS2, have a peace of mind knowing you can always return to a spotless, safe, and comfortable abode.