Enhanced Equipment Protection: This HEPA filter effectively captures fine dust particles, preventing them from entering and damaging your air purifier. By reducing wear and tear, it helps extend the lifespan of your Levoit Air Purifier Core 400S, ensuring optimal performance and durability. Quiet & Energy-Saving Operation: Crafted from low-resistance materials, this air filter operates quietly and consumes minimal energy. This design supports a peaceful environment and helps reduce electricity usage. Optimal Ventilation System Performance: This HEPA filter helps keep your ventilation system free of debris and reduces airflow resistance. Improved airflow efficiency enhances the performance of air conditioning and fresh air systems. Extended Lifespan & Cost Efficiency: The filter’s structural design increases its dust-holding capacity, reducing the frequency of replacements and supporting long-term cost efficiency. Compatibility Assurance: Designed specifically for the Levoit Air Purifier Core 400S, this filter ensures a precise fit and optimal function. Replace your old filter with confidence to maintain high indoor air purification performance. Color: Yellow Material: Composite material Package Contents: 1 x Air Purifier Filter