The Original Holmes HWF75 Humidifier Filter features Microban technology which is a built-in protection that inhibits the growth of bacteria, mold, and mildew that cause bad odors and stains.

• Holmes HM3500, HM3501, HM3600, HM3608, HM3640, HM3641, HM3650, HM3655, HM3655BF, HM3656 and HCM6009
• White Westinghouse WHM3300, WWHM3600