Arm & Hammer Odor Eliminating Vacuum Filter, Eureka DCF 16: * 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 Eureka Altima, Altima Turbo, True Clean and Uno (2950, 2960, 2990 Series) Uprights