Designed to fit Hoover canister vacuums using type S bags, these allergen bags are ideal for many allergy sufferers. The bags contain electrostatically charged liners to help capture extremely fine particles. They are 100% effective at trapping dust mites and eggs, 99.98% effective at trapping common grass pollens, and also highly effective at trapping cat dander, molds, mold spores, and other particles. The Hoover vacuums these bags fit include Futura, PowerMAX, WindTunnel, and TurboPower 2000,...more