miércoles, 12 de agosto de 2020

Coronavirus (COVID-19) Face Mask: Most effective face mask to block Covid-19

Coronavirus (COVID-19) Face Mask: Most effective face mask to block Covid-19

Explained: Study zeroes in on most effective face mask to block Covid-19

August 12, 2020 5:47 pm
Coronavirus (COVID-19) face mask: The best face covering for preventing spread of droplets were N95 masks without valves while fleece coverings and bandanas were the least effective

No hay comentarios: