What is the cleaning process for a KN air filter?
2 Answers
KN air filter cleaning process: 1. Tap the intake side of the KN air filter to remove loose particles, then use a brush for further cleaning; 2. Evenly spray KN-specific cleaner onto the filter element; 3. Rinse with low-pressure tap water, directing the water flow opposite to the intake direction to prevent dirt from embedding into the filter element; 4. After rinsing, shake off excess water and allow the filter element to air dry naturally; 5. Evenly apply KN-specific maintenance oil to the front side, and the cleaning process will be completed after 20 minutes. The KN air filter utilizes multi-layer interwoven deep dust-retaining cotton fibers combined with specialized oil material, capturing fine dust through four layers of cotton fiber media while maintaining air flow efficiency.
I usually follow five steps to clean a KN air filter: First, remove the air filter housing and take out the filter element. Spray the dedicated cleaner carefully along the pleats, ensuring both sides are evenly covered, then wait ten minutes for the oil and dirt to break down. Next, rinse with gentle tap water, flushing from the inside of the filter outward to wash out the dirt—never use a high-pressure washer as it can damage the filter media. After washing, let it air-dry naturally; I leave it in a ventilated area for a full day—never sun-dry or use a hair dryer. Once completely dry, apply a thin layer of KN maintenance oil, spreading it by hand to ensure even coverage on every pleat. Finally, reinstall it in the vehicle. This routine can extend the filter's lifespan by two to three times, and after cleaning, the engine sound becomes smoother, with noticeably improved airflow during high-speed overtaking.
