Fangrui Product Details Compatible With Levoit Models: This Premium Filter Is Designed Specifically For The Levoit Core300-p Vortexair Air Purifier And Matches Part Number Core 300-rf-pa. Although Not Original, It Guarantees Compatibility And High Performance. Advanced 3-in-1 Filtration Technology: Utilizes A Multi-stage Filtration System That Includes A Fine Nylon Primary Filter, A True Hepa Filter With H13 Rating, And An Activated Carbon Filter. Designed To Effectively Capture Pet Dander, Odor And Fluff. High Performance: Captures Up To 99. Of Airborne Particles Down To 0.01 Microns. The Activated Carbon Layer Neutralizes Unpleasant Odors And Gases, Making It Ideal For Pet Owners, Smokers And Kitchens. Premium Energy Saving: Made With Advanced Technology For Lower Energy Consumption And Better Performance. Our Filters Ensure That Your Air Purifier Operates Efficiently With Less Pressure. Cost Effective Solution: Includes 2 High Quality, True High Efficiency Filters. For Results, Change Your Filters Every 6-8 M