With the knowledge that most viruses range in size from 0.004-1.0 μm (microns), some believe they are “too small” to be contained by even the best MERV or HEPA filters. This leaves many wondering about air filters’ effectiveness against pathogens, such as SARS-CoV-2. Can the virus be “caught” by an HVAC air filter in order to create cleaner, safer air for businesses, schools, and hospitals?
It’s been stated that increasing the HVAC systems’ minimum outdoor air ventilation rate is the best precaution to help limit the transmission of the disease, referring specifically, to indoor long-distance airborne transmission of the COVID-19 virus, which research has now proven to be possible.