The most and least effective coronavirus face masks, according to new study
August 11 2020, 08:00
The best face coverings at preventing droplet spread were N95 masks without valves, while fleece coverings were actually shown to be "counterproductive,” one study found.
The best face coverings at preventing droplet spread were N95 masks without valves, while fleece coverings were actually shown to be "counterproductive,” one study found.
Source:
FOX News