Hoover 4010100S Type S Allergen Bag - 3 Pack Designed for high filtration of common household allergens Fits Hoover Canisters including Futura, Spectrum, PowerMAX, WindTunnel and TurboPower 2000, 5000, 6000 & 7000 Type S Allergen Filter bag Bags fit all Hoover canister vacuums using Type S bags Bags trap dust mites, pollens, cat dander, molds, other particles Electrostatically charged liners help capture extremely fine particles