Surgical face masks appear to be one of the best ways to stop the spread of respiratory droplets.

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A recent study from Duke University measuring the efficacy of 14 types of masks and face coverings found disposable surgical masks worked well to block respiratory particles emitted when people talk.

“People are going to like this technique because it definitely closes the gaps… (and) anything that closes gaps is going to be better.”.

She pointed out that even though many people call this type of face covering a surgical mask, the correct terminology for it is a procedure mask.

Bruno-Murtha advised only using the technique on a clean mask, because a worn one may be contaminated with droplets, which can then contaminate your hands when you’re tying the loops or otherwise handling it