Vornado MD1-0002 Replacement Humidifier Wick Filters, 2-pk For all vornado evaporative humidifiers Work with models Evap3, Evap2, Evap1, Model 30, Model 40 &amp; Model 50 2 pack Made in USA. These humidifier replacement filters, part number MD1-0001 (same as MD1-0002), work with models Evap3, Evap2, Evap1, Model 30, Model 40 &amp; Model 50.