For Vornado MD1-0001 MD1-0002 Humidifier Filter Air Filters Wicking Filter 4-16X
Compatible with: Vornado MD1-0001, MD1-0002, MD1-1002 Humidifier Wick Filter & Vornado Evaporative humidifiers, including model numbers 221, 232, 421, 432 and HU1-0021. HIGH QUALITY AIR FILTERthat can replace for Vornado humidifier filter.