Protocall Company provides the sale and distribution of PCO (photocatalytic oxidization) products. Protocall Company is the parent company of Protocall Mobile, which provides onsite PCO rental for event management. Photocatalytic Oxidation (PCO) is a very powerful air purification technology and has the ability to destroy particles as small as 0.001 microns (nanometer) whereas HEPA filters can only filter particles as small as 0.3 microns. This technology can help your events stay safe during the COVID-19 pandemic.