[Perfectly Compatible with Core Mini] These replacement filters are designed specifically for the Core Mini air purifier, ensuring a precise fit to enhance the efficiency and performance of your air purification system. (Note: Compatible only with Core Mini. Please verify your air purifier model before purchasing.) [3-Stage Filtration for Core Mini] This replacement filter features a pre-filter, H13 True HEPA filter, and activated carbon filter, providing a 3-stage filtration system. Experience improved air purification as these high-efficiency filters work together to capture airborne particles and reduce odors, helping maintain cleaner and fresher indoor air. [H13 True HEPA Filter for Core Mini] Enhance your air purification experience with the H13 True HEPA filter. Engineered to strict standards, it captures 99.97% of airborne particles as small as 0.3 microns, including pollen, pet dander, dust, and other microscopic pollutants, making it ideal for those seeking better indoor air quality. [Superior Quality & Long-Lasting Performance] The Core Mini-RF filter is constructed with eco-friendly non-woven fabric and activated carbon. Its low-density structure and advanced design help reduce wind resistance and system pressure while supporting energy efficiency. Integrated electrostatic electret technology enhances particle capture and extends the filter’s lifespan. [Easy Installation & Maintenance] No tools or technical skills required—this filter can be installed in just a few simple steps. For best results, clean the filter every 2 to 4 weeks and replace it every 4 to 6 months, depending on usage and environmental conditions. [Advanced Air Quality Solution] Upgrade your indoor air with a comprehensive filtration system designed to support a healthier living environment.