Researchers from the Centers for Disease Control and Prevention (CDC) have conducted a study showing that face masks and neck gaiters appear to be much more effective than face shields at reducing the expulsion of respiratory aerosols that could potentially transmit severe acute respiratory syndrome 2 (SARS-CoV-2).


SARS-CoV-2 is the agent responsible for the current coronavirus disease 2019 (COVID-19) pandemic that continues to pose an ongoing threat to global public health and the economy.

Using a cough aerosol simulator to expel small aerosol particles into different face coverings, the team found that the N95 respirator, procedure mask, cloth mask, and neck gaiters effectively reduced the emission of the aerosols, while the face shield was not. So in the mask wars, the Face Mask wins.