Eureka HF-5 HEPA Odor Eliminating Vacuum Filters / DCF-15 Pet Fresh (64009D) Designed according to strict HEPA standards Baking soda particles neutralize odor-bearing chemicals Releases clean, odor-free air into your home as you vacuum Filter is washable. Replace filter every 90-120 days for optimal performance 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