HEPA Cartridge Filter for Bissell Vacuum Style 7 and 9 This replacement HEPA cartridge filter is engineered to maintain peak performance in Bissell Style 7 and Style 9 vacuum cleaners. The high-efficiency particulate air technology captures 99.97% of particles as small as 0.3 microns, including dust, pollen, and allergens, ensuring cleaner air output with every use. Compatible with multiple Bissell models, this cartridge filter extends your vacuum's lifespan while preserving suction power. Regular replacement every 6-12 months—depending on usage frequency—keeps your cleaning system operating at optimal efficiency. A genuine replacement part designed for reliability and consistent performance.