Perfect Compatibility: Specifically designed for LEVOIT Core 300 series air purifiers, this replacement filter maintains optimal performance. It matches the for-original in both function and fit, ensuring your air purifier operates efficiently. Advanced 3-Stage Filtration: This filter features a multi-layer system including a Fine Nylon Preliminary Filter, HP 13 Grade HEPA Filter, and an Activated Carbon Filter. It effectively traps and reduces pollutants, providing cleaner air. High-Efficiency Performance: Captures up to 99.97 percent of fine particles and allergens as small as 0.3 microns. It also absorbs odors from pets, smoking, and cooking with its activated carbon layer, enhancing your living environment. Optimal Filter Life: To achieve the best air filtration and purification, replace the filter every 6-8 months. The lifespan may vary based on your local air quality and how frequently the air purifier is used. Each filter undergoes rigorous quality inspection to ensure high performance. Colour:White Material:Plastic Package Contents: 2 x Filters 1 x Cleaning brush Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.