Mold Magnet has been tested by NIOSH / CDC to efficiently capture viral particles from air samples. In testing using standard HVAC filters, Mold Magnet provided 1000 times higher capture rates for microbes than filters that were not treated with Mold Magnet. In lower quality filters, like standard home furnace filters, the MERV Rating was increased up to 7 units. For example, a MERV 6 Filter would effectively capture microbes like mold, bacteria and viruses more like a MERV 13 filter. To date, Mold Magnet has not been tested with high MERV rated filters, such as HEPA filters. The testing of HEPA filters that have been treated with Mold Magnet for COVID-19 capture will hopefully happen in the near future.