- Superior Compatibility: The Classic 400 Series DualProtection Filter Replacement is designed specifically for BLUEAIR Classic 400 Series Air Cleaner Purifiers, including models 480i, 402, 403, 405, 410, 450E, and 455EB. Please verify your model before purchasing to ensure a perfect fit. - Enhanced Air Quality: Featuring a True HEPA filter, this replacement effectively captures dust, pollen, pet dander, and other airborne pollutants for cleaner, fresher indoor air. The activated carbon filter also tackles household odors from pets, cooking, smoking, and volatile organic compounds (VOCs), significantly improving your living environment. - Effortless Installation: Replacing your old filter is a breeze—simply remove and replace it with the new filter. For optimal performance, it is advisable to change filters every 8-12 months, or sooner based on usage conditions. - Value-Added Package: Each purchase includes 2 x 400 Series Replacement Filters. Crafted from high-quality materials, these filters are built for durability, providing long-lasting performance and excellent value for your investment. Use Scenarios: 1. Ideal for households with pets, significantly reducing allergens and odors for better air quality. 2. Perfect for cooking environments to eliminate lingering food smells and smoke. 3. Great for individuals with allergies or sensitivities, ensuring a healthier indoor atmosphere. Ensure your air purifier operates at its best with our reliable filter replacements.