Think Crucial Replacement Compatible with Vicks WF2 Humidifier Filter Fits V3500N, V3100, V3900 Series, V3700, 1118 Series & HCM-350 Series, Compatible With # WF2 (4 Pack) HIGH QUALITY AIR FILTER that can replace your Vicks WF2 Humidifier Filter. Get back to breathing clean air again! HEALTHIER LIFESTYLE! No one wants to breathe in dirty air and if you don't clean your air filter that will be exactly what you'll be doing! Replacing your filter will help clean your air and allow for a healthier lifestyle! This filter fits Vicks V3500N, Vicks V3100, Vicks V3900 Series, Vicks V3700, Sunbeam 1118, 119, & 1120 Series & Honeywell 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 Series. EASY TO INSTALL so you can get back to breathing clean air as soon as possible! Simply remove your old filter and put this brand new one in it's place! This filter is comparable to model # WF2. SAVE MONEY by using a new air filter! When your Vicks WF2 Humidifier has a clogged or dirty air filter it can cause it to work harder which will end up hurting your electric bill! This filter also fits Enviracaire ECM-250i & ECM-500 & ReliOn WZ-8D.