BMC racing air filter for BMW F 900 / 850 / 800 / 750 / GS / XR / R

One-piece filters (with no seals that could break)
Special cotton filter material impregnated with low-viscosity oil
High-strength epoxy mesh resistant to fuel vapors and oxidation
Washable and therefore reusable cotton
Optimal airflow, ensuring minimal power loss compared with traditional paper filters
The characteristics of a cotton filter can be summarized as permeability, filtration, retention, and reusability.

Permeability: offering minimal obstruction for maximum airflow
Filtration: preventing foreign bodies from entering
Retention: retaining solid particles
Reusability: cotton filters can be reused thanks to BMC-specific cleaning products