Key benefits Captures dust and improves room freshness: Replacing the filter restores the device’s ability to retain dust effectively, keeping indoor air cleaner. Prevents secondary pollution during cleaning: The sealed filter design stops dust from escaping through the exhaust while you clean, so air stays clean throughout maintenance. Maintains stable suction and protects the motor: Timely replacement prevents clogging of the filter screen that can reduce suction, ensures the motor runs under normal load, and helps extend the life of the whole machine. Lowers maintenance cost: The primary filter is washable and reusable. After 5–8 wash cycles the filter element should be replaced, reducing long‑term operating expenses. What this filter does Function: Acts as the primary dust-capture element, holding particles that would otherwise re-enter the room or stress the motor. Performance: Restores intended suction power and airflow by eliminating buildup and blockage in the filter screen. Design: Sealed filter assembly prevents dust leakage during removal or cleaning, minimizing airborne dust exposure. Compatibility and usability Replacement: Designed to serve as a direct replacement for the original primary filter element and to install into the same filter housing without modification. Maintenance: Washable primary filter element allows repeated reuse. Replace the element after roughly 5–8 wash cycles or sooner if heavily soiled. Ease of use: Simple removal and reinstallation support convenient, safe cleaning with minimal airborne dust. Practical applications (use scenarios) Regular home cleaning: Replace the filter to restore suction and keep living spaces fresher, especially in homes with pets or high dust levels. Post-cleaning maintenance: Remove and clean the filter after intensive cleaning sessions; the sealed design prevents dust from escaping while you handle it. Prolonged device life: Routine replacement according to the 5–8 wash guideline prevents motor strain and helps maintain reliable performance in daily or commercial use. What to expect Cleaner air during and after filter maintenance. Stable suction and consistent device performance. Lower long‑term maintenance cost thanks to the washable primary element and clear replacement interval. Note: Replace the filter element after 5–8 wash cycles or when visible wear and reduced performance indicate it is no longer effective.