- Neutralizes Harmful Airborne Particles The NP450 True HEPA Filter Replacement with Activated Carbon is designed to trap and reduce dust, pollen, pet dander, and other airborne irritants that can affect health. - Improves Air Quality and Eliminates Odors The activated carbon layer targets odors from pets, cooking, and smoking while HEPA filtration captures fine particles, helping deliver fresher air at home and in the office. - Your Air Purifier's Best Companion Made with premium-grade materials and developed to meet manufacturer benchmarks to keep your purifier performing at its best. Replace every 6 months to maintain optimal performance. - Compatibility and Fit Custom designed to fit select models. NP450 Air Purifier True HEPA Filter Replacement with Activated Carbon is compatible with Levoit LV-PUR131 True HEPA Air Purifier. - Practical Use Scenarios - Allergy season at home: reduce pollen and irritants in living spaces. - Pet households: manage pet dander and odors for a cleaner environment. - After cooking or in smoking areas: refresh air in kitchen and common areas in both home and office.