Relax and breathe easy with this peace-of-mind essential for today's home. The Purxium countertop air purifier 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 500 sq. ft. room 2x every hour and 250 sq. ft. 4x every hour.