- Compatibility: Premium HEPA filter replacement with activated carbon designed for Surround Air Intelli-Pro XJ-3800 Air Purifier - Filtration technology: Includes a premium HEPA filter with activated carbon - Particle removal: Captures 99.97% of airborne particles down to 0.3 microns - Odor control and dust: Pre-filter and carbon filter remove household odors and trap dust, helping to extend the life of the HEPA filter - Dimensions: 13 x 11 x 1.25 inches - Replacement interval: Recommended to replace every 6 months to maintain air purifier efficiency - What is included: Premium HEPA filter replacement with activated carbon, plus a pre-filter and a carbon filter - Use scenarios: - In homes with pets to reduce pet dander and odors - In kitchens or dining areas to minimize cooking odors and airborne particles - In bedrooms or living rooms during allergy season to improve air quality from pollen and dust