Reinforced design for longer life and better efficiency than standard expanded wicking filters Traps impurities in the water Anti-Microbial Treated Fits: Emerson Humidifier Models: MA-0950, -1200, -1201, -09500, -12000, -12001, -12010, and (MAF1) Kenmore Models: 14410, 14411, 14906, 144105, 104106, 144107, 144115, 144116, 144117, 144118, 154120, 15412, 29979, 29980, 29981, 29982, 299795, 299796C, 299805C, 299810, 299811, 299812C, 299825C, and (14906) -22701 Single Pack