Blueair 650E Air PurifierOverview Innovated with love in Sweden, the Blueair 650E gives you silently and effectively clean indoor air in rooms up to 698 square feet, using powerful HEPASilent technology with remote control and instant digital access to particle and gas levels, speed settings, and filter change status. Key Features Warranty: 5 years Designed for large rooms up to 65 sq. m or 698 sq. ft. in size. Patented HEPASilent filtration technology. Certified 99. 97%