Multi Pack: Includes 2 replacement for rotation and backup For maintained suction power, change every 1–3 months to consistent cleaning and device function Enhanced Filtration structure: Made with filtering fabric featuring evenly distributed small openings to fine, sand particles, wall debris, fabric fibers, and other tiny impurities for thorough cleaning Excellent Compatibility: This replacement filter set is designed for P12 and P13 cordless handheld vacuum models The exact dimensions allow easy installation without modifications, offering complete matching functionality Indoor Air security: Helps seize floating pollen, small particle waste, mold spores, and household irritants during use Reduces circulation, ideal for homes with elderly, children, or sensitive individuals Pet Hair & Debris Control: Efficiently gathers pet hair, skin flakes, and food crumbs without clogging or leakage Improves cleaning on carpets, sofas, and bedding, especially helpful for pet households