The CleanZone SL air purifier is perfect for offices, schools, hospitals, and other commercial sites, and features high-efficiency pre-filtration and HyperHEPA media, to filter viruses, bacteria, pollen, dust, and other allergens. The CleanZone Series Advanced Micro-fibers are 10 times thinner than conventional filter fibers, allowing air to easily pass through filtration media with little resistance, turbulence, or noise while ultrafine threads create an almost impenetrable barrier for pollutants – including airborne biological contaminants like viruses and bacteria. The encasement comes in artisanal, hand-coated oak inspired by nature’s infinite beauty.