General description Core 300 Replacement Filter is exclusively designed for the LEVOIT Core 300 air purifier to maintain optimal performance. It is recommended to replace the filters every 6-8 months to ensure effective air cleaning throughout the year. Technical specifications Filter Type: 3-in-1 True HEPA HEPA Grade: H13 Size: 193 x 150 mm Material: Plastic Package Contents: 3 x Filter Screens Measurement allowed error: +/- 1-3 cm Usage True HEPA technology filters fine airborne particles such as pet dander, dust mites, and pollen, effectively helping to improve allergies. The ultra-fine nylon pre-filter captures large particles like dust, lint, fibers, hair, and pet fur, maximizing filter life. The high-quality granular activated carbon filter absorbs unwanted odors and fumes, including smoke, cooking odors, and pet odors, making it ideal for households with pets, kitchens, and smoking rooms.