Kirby Vacuum Cleaner Bags - The Finest in HEPA Filtration Need to replace your Kirby vacuum bags? No problem! The Kirby Allergen Reduction Filter Bag is the most popular of all our Kirby bags. Every single one of our Kirby bags reduces common household dust, pollen and other particles. The electrostatically charged material traps particle matter after it is picked up from your floor. This keeps dirt and dust inside your Kirby vacuum bag and not in the air around your home. The Allergen Reduction filter system reduces dust, pet dander, pollen and other household debris, and is ideal for pet owners.