Date: December 31, 2020 (revised)
There have been multiple papers written by many authorities on Covid-19 and the necessity to clean the air in buildings. Our opinion is that four of the best sources are The Center for Disease Control (CDC), The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) World Health Organization (WHO) and Taylor Engineering’s White Paper. The opinions in this paper are our best assumptions as garnered from those and other sources about the virus. It covers where the virus comes from, where...