Captures up to 99.9% of various airborne particles 0.1 micron or larger including bacteria and various contaminants.. Up to 500 sq. ft. 2x every hour and up to 250 sq. ft. 4x every hour. Two (2) H13 High-Grade HEPA filters, Two (2) Active carbon filters, Two (2) Washable removable metal pre-filters. 2,500 hour runtime rated filter system, 2-sided air intake, 250 CADR. Illuminated touchscreen controls, Filter replacement indicator, Child safety lock