1.Neutralizes Harmful Airborne Particles - Our True HEPA filters have been designed to effectively trap and eliminate air particles such as dust, pollen, pet dander, and other airborne irritants that can be harmful to you and your family's . 2.Improves Air Quality - help freshen the air by removing unpleasant odors caused by pets, cooking, and smoking. It also help improve the air quality in your home and office, so you can breathe in fresh and y air all the time. 3.Your Air Purifier's Best Buddy - An air purifier is only as effective as its filter. Our filters are made of premium-grade materials and developed in accordance with the manufacturer's stringent benchmarks to ensure your purifier is running at its maximum potential. It is advisable to replace your filter every 6 months to maintain the optimal performance of your air purifier. 4.Outstanding Preference - Our filters have been customized to fit select air purifier models. The NP450 Air Purifier True HEPA Filter Replacement with Activated Carbon is compatible with Levoit LV-PUR131 True HEPA Air Purifier.