“The entire world was touched by the effects of the pandemic and we learned that an effective way to protect ourselves from the spread of pathogens is to improve the indoor air quality and ventilation in the buildings that we occupy,” (press release from ASHRAE – The American Society of Heating, Refrigerating and Air-Conditioning Engineers)
Link to ASHRAE Technical Recommendations
Interpretation by Joey Fox, HVAC Engineer. P. Eng. @O_S_P_E IAQ Advisory Group Chair.