Pro Care Replacement Humidifier Filter PCWF2 For Use With Cool Mist Humidifiers Fits Models: Vicks V3700 & V3900 & Relion WA-8D, Kaz, Sunbeam, Honeywell & Many More (See List) For Use With Cool Mist Humidifiers Antimicrobial Filter Inhibits Up To 99.99% Of Mold Growth On The Filter Removes Particles From Water