Arm & Hammer Odor Eliminating Vacuum Filter, Hoover Non-Self Propelled Wind Tunnel Final: * Baking soda particles neutralize odor-bearing chemicals * Releases clean, odor-free air into your home as you vacuum * Replace filter every 90-120 days for optimal performance * For use in Hoover WindTunnel (except Self-Propelled), Empower, PowerMAX, Tempo Widepath and select Fold Away Bagless Uprights, including C1701900, U5014900, U5016900, U5018900, U5140900, U5144900, U5145900, U5146900, U5148900, U5150900, U52719RM, U52729RM, U53019RM, U53029RM, U5348911, U5402900, U5409955, U5416900, U54219RM, U5436950, U5438960, U5453900, U5458900, U5458910, U5460900, U5462900, U5467900, U5468900, U5470900, U5481980, U5491900, U5491950, UH30015, UH30030HD Models