Holmes HWF75PDQ-U 1-Pack Replacement Wick Filter Type: Replacement Filter Used For: Humidifier Feature: Microban antimicrobial protection Holmes Filter Fits: Holmes: HM-3500, 3600, 3640, 3650, 3655-White Westinghouse: WWHM3300, WWHM3600 Dense evaporative wick filter traps water-borne impurities Features antimicrobial protection to inhibit mold, mildew, and bacteria |