Their latest recommendation is “placing a sleeve made of sheer nylon hosiery material around the neck and pulling it up over either a cloth or medical procedure mask,” or using knots and tucking to fit a mask closely to the face.
They came up with these techniques in experiments with mannequins in a lab and have not tested them on actual humans. They have no empirical data, and the study even warns:
The findings of these simulations should neither be generalized to the effectiveness of all medical procedure masks or cloths masks nor interpreted as being representative of the effectiveness of these masks when worn in real-world settings.
And there’s also this warning: “Double masking might impede breathing or obstruct peripheral vision.”
....do they have bank robbers giving them advice?
So sick of all this crapola!!!!
I thought that was the Bee! They were serious?!