HEPA filters can clean the air from Sars-CoV-2

Scientists from the University of Cambridge have carried out a study. They have installed the filters in two filled wards where patients with COVID-19 were located. The scientists chose HEPA filters for the ability to trap fine particles. Within a week, the scientists collected air samples from the wards when the air filters were turned on, and two weeks when they were turned off to compare the results.

SARS-CoV-2, which is airborne, was present in the compartment for five days before air/UV filtration was activated. SARS-CoV-2 was not detected throughout five days when the air/UV filter was in operation. Also, HEPA filters protect not only from SARS-CoV-2, but also from Staphylococcus pyogenes, Escherichia and Staphylococcus aureus. These filters are not used in hospitals today, but the scientists believe they can help to reduce the risk of airborne viruses.

Source: Medscape