Where is the fuss to bring fresh air to indoor spaces to clear contaminated air? In a closed room, the concentration of virus particles can build up along with the risk of infection. This means that you could walk into a closed room and breathe in virus particles left behind hours ago by an infected person. Clean air matters for Covid-19 – there is a strong correlation between air pollutants and Covid-19, which both cause respiratory problems. Dr Shahrul says air purifiers with true Hepa (high efficiency particulate air) filters can help clean air.
