EVANSTON, Ill. — The current pandemic has thrown a spotlight on the invisible threat of airborne viruses and other pathogens in commercial and residential buildings. Highly effective systems are available to purify recirculated air, but, because of cost and delivery issues, they are often not an immediately available solution.
All HVAC systems have some means of filtering the air that they cool, heat, and recycle. Mostly, these filters are designed to trap particulates and prevent the spread of dust and pollens. To mitigate the spread of pathogens, additional filter technology is required. ProGuard® Filters from ProMark Associates, are a quick and affordable way for building owners and facility managers to improve IAQ. In most cases, there is a ProGuard Filter that is sized to be a direct replacement for filters currently in use. For each size, there are also different technologies available to respond to a particular situation.