The air purifier that features washable, reusable metal filters, combination H13 High Grade HEPA/Active carbon filters that work together to capture up to 99.9% of airborne particles 0.1 Micron or larger. This includes airborne bacteria and various contaminants. The air purifier cycles air within 250 sq. ft. room 2x every hour and 125 sq. ft. 4x every hour. Relax and breathe easy with this peace of mind essential for today's home.