The Coronavirus is not disappearing.  As school has started in Europe, new outbreaks have arisen. Experts now warn that the deaths in the U.S. will range from 300,000 to 600,000 by the end of the year. India is  registering 90,000 new cases per day. A vaccine is not going to be 100% effective.  There is increasing evidence that much of the transmission is through small aerosols.  MERV 8 filters will not remove a high percentage of the virus and are likely to be aerosol generators for larger droplets. These conditions create a very large market opportunity for the filtration industry.  The market will not experience a sharp peak as the benefits of cleaner indoor air become permanently established.