Product Details Model WF2. Protec treated filter inhibits up to 99.99% of mold growth on the filter (See side panel for details regarding antimicrobial inhibition treatment, as well as additional models that use this filter). Removes minerals and pollutants from water. Filter helps prevent the growth and migration of mold, algae and bacteria on filter. Fits Models: Vicks V3500N; Vicks V3100; Vicks V3900 Series; Vicks V3700; Sunbeam 1118 Series; Honeywell HCM-350 Series. Protec treated filter inhibits up to 99.99% of mold growth on the filter (Based on internal laboratory test report No. SM211AF. Results are based on reduction of the following on the wick: Up to 99.996% reduction after 96 hrs of continuous use compared to the untreated wick. This filter is treated with Aquastat XR, an antimicrobial agent contained in thus product which is intended to prolong life by inhibiting the growth of unsightly mold, mildew and algae, as well as controlling odors from odor-causing bacteria on the filter. The antimicrobial in the filter does not protect users or others against bacteria, viruses, germs or other disease causing organisms. Always follow all label directions carefully and the humidifier's instructions regarding cleaning, maintenance and servicing of your humidifier). Removes minerals from water. Reinforced for longer filter life and maximum efficiency. Antimicrobial treated filter (Based on internal laboratory test report No. SM211AF. Results are based on reduction of the following on the wick: Up to 99.996% reduction after 96 hrs of continuous use compared to the untreated wick. This filter is treated with Aquastat XR, an antimicrobial agent contained in thus product which is intended to prolong life by inhibiting the growth of unsightly mold, mildew and algae, as well as controlling odors from odor-causing bacteria on the filter. The antimicrobial in the filter does not protect users or others against bacteria, viruses, germs or other disease causing organisms. Always follow all label directions carefully and the humidifier's instructions regarding cleaning, maintenance and servicing of your humidifier). The Cool Mist Wicking Filter should be replaced about every two months, depending on use and local water hardness. If you have any questions or comments, please call Kaz Consumer Relations Dept at 1-800-477-0457. For Use with Cool Mist Humidifiers: Vicks Model: V3100, V3500, V3500N, V3600, V3700, V3800, V3850, V3850, V3850JUV, V3900 & V3900JUV. Kaz Model: 3020. Sunbeam Model: 1118, 1119 & 1120. Honeywell Evaporative Model: HCM-630, HCM-631, HCM-645, HCM-650, HCM-300T, HCM-315T, HCM-350, HCM-350B, HCM-1000, HCM-2000, HCM-540 Series, HCM-710. Enviracaire Model: ECM-250i, ECM-500. Relion Model: WA-8D. Visit our website at: www.kaz.com. Package recyclable. Made in USA.