2 Sets of Compound TRUE HEPA Filter (Captures 99.97% .3 microns) with activated Carbon Pre-Filter Ideal for 450 Sq. ft. area with high CADR (Smoke 285, Dust 265, Pollen 280) 4 Fan Speeds with Touch Control PM2.5 & VOC Sensor Included Filter Replacement Indicator LED Display of Air Status and Quality, Shows the Filter Life Status Three Modes: Auto, Sleep, Turbo Smart Night Mode Large Visible Filter Air Window Removable Wheels for easy transportation Child Lock ENERGY STAR® rated, AHAM Verified, ETL Certified 24-month warranty on parts and labor with carry-in service