## Polini Air Filter Cartridge, CPI / Keeway - Superior Filtration for Your Scooter This high-quality Polini air filter cartridge is the perfect solution for CPI and Keeway scooter owners who value optimal performance and engine longevity. Designed using experience gained on the racetrack, this filter provides excellent air filtration, contributing to improved performance and engine protection. ### Two-Stage Filtration for Maximum Cleanliness The Polini air filter cartridge consists of two layers of polyurethane foam with different porosity: blue (60 PPI) and black (30 PPI). The blue layer, with finer porosity, captures the smallest dirt particles, while the black layer traps larger particles. The wavy outer surface of the filter increases airflow while trapping up to 50% more large contaminants. This ensures the engine receives cleaner air, resulting in better combustion and higher power. ### Performance and Durability Confirmed by Standards The filter meets the European standard EN779 (G3 to G4), confirming its high filtration efficiency - over 90% for all contaminants and over 50% for one-micron particles. The Polini filter cartridge is also characterized by a large dust holding capacity, which extends its service life. ### Easy Regeneration and Replacement The filter cartridge can be easily regenerated by washing and drying, and then re-soaking with special oil for sponge filters. Replacing the filter with a Polini is a simple way to improve airflow, optimize the fuel-air mixture, and increase engine power. It is recommended to replace the cartridge every few thousand kilometers to ensure optimal fuel consumption and long scooter life. ### Compatibility Before purchasing, please compare the shape of the filter with the shape of the cartridge in the photo to ensure its compatibility with your scooter. ### Polini Brand - Guarantee of Quality Polini is a renowned manufacturer of motorcycle and scooter parts, known for its high quality and innovative solutions. By choosing the Polini air filter cartridge, you are investing in a proven product that will provide your scooter with optimal performance and reliability.