Enhancing your cleaning efficiency with the filter set, designed specifically for the FX9 Vacuum Cleaners, ensuring captures and air purities with filtration materials Ideal for families, especially those with children or pets, allergy sufferers seeking air, and cleaning professionals who require efficient vacuum This set features washable and easy to replace, including 4 hygienes and 4 pre motor, crafted with materials that excellent breathability without compromising suction power Regularly replacing these not only extends the life of your FX9 vacuum but also ensures top, making it a vital component for anyone committed to a clean and living space Perfect for maintaining cleanliness in various settings such as homes, offices, pet friendly environments, schools, and hospitals, effectively, allergen, and pet hair