>>31123955>they are filtering out virusesA surgical mask does not and can not filter out viruses.
Even N99 masks can not do that, which is why any biological hazard situations have individuals in full hazmat suits, completely isolated from outside air.
The purpose of surgical masks is to impede airflow from your body, to limit the distance at which you actively spread aerosols and fluids from your exhale. They exist to limit the spread of virions from >2 metres to your front to your immediate surroundings, nothing more.
