Holmes Replacement Humidifier Wick Filter Control Dust &amp; Dirt This triple layer humidifier filter helps control dust and dirt build-up and helps prevent impurities from spreading by passing air through the filter Treated With an Antimicrobial Agent This filter is treated with an antimicrobial agent to inhibit the growth of mold, mildew and odor-causing bacteria on the surface of the filter only For Holmes models humidifiers: HM7203RC, 7305, 7305RC, 7405, 7306, HM4600, HM6000, HM630-U, BCM5520 &amp; BCM6010 &amp; Sunbeam SCM631, Carbon Filter Microban antimicrobial protection 3 pack.