Compatibility and fit - Designed for LEVOIT Core 300 family: Core 300, Core 300-P, Core 300S, Core 300S-P - Not compatible with other Levoit models - Filter dimensions: 7.6 inches long x 7.6 inches wide x 5.8 inches thick Filtration performance - 3-in-1 filtration system: Ultra-fine Pre-Filter, H13 True HEPA filter, Activated Carbon filter - Pre-filter captures hair, lint, dust, pet fur and other large particles - True HEPA filter removes 99.97% of particles 0.3 microns in size - Activated Carbon filter absorbs smoke, cooking smells and pet odors - Together they help deliver fresher, cleaner air Construction and efficiency - Made with fine non-woven fabric and activated carbon fabric - Designed for lower energy consumption and lower density structure - Higher filtration efficiency with reduced pressure drop - Energy saving, reliable performance and longer filter life Package contents and value - Includes 2 Core 300-P replacement filters - Specifically fits LEVOIT Core 300 and Core 300S purifiers - A cost-effective option for year-round air cleaning Use scenarios - After cooking to minimize lingering kitchen odors - In homes with pets to reduce fur, dander and odors - In bedrooms or small offices to maintain better overall indoor air quality