Protec antimicrobial treated, replacement humidifier filter. Features an optimized filter design to maximize moisture output. Filter captures minerals and pollutants from water and helps prevent white dust. Protec antimicrobial treatment helps inhibit the growth and migration of mold, algae, and bacteria on the filter. Humidifier Type: Tabletop Dimensions: 5 In. H x 7 In. Dia. Model Compatibility: Tower, Small Table-Top Models pack of 3