Arm & Hammer Odor Eliminating Vacuum Filter, Eureka HF5 / DCF15: * Designed according to strict HEPA standards * 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 * Filter is washable * For use in Eureka Boss 4D and Boss 4D Pet Fresh (5810, 5800, 5890, 5900 Series) Uprights. DCF-15: EUREKA Boss 4D and Boss 4d Pet Fresh (5800, 5900 Series) Uprights