A doctor explains the difference between face shields versus face masks in fighting transmission of the COVID-19 pandemic.
(Which ones do I wear?How do I clean them?
Whyare they so important to sport in the first place?)

The latest mask practice in-question asks for the real difference between wearing a face shields versus face masks.
Its Amazing How Its All Connected.
The masks arent 100 percent effective, says Dr. McClina.

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Weve seen studies showing that a10 to 30 percent increase in protectionis available with a standard bandana cotton mask.
Medical-grade masks, meanwhile, circulate out between60 to 80 percent of particles.
(Read: They arenota virus catch-all.)

While its not currently universally recommended, doing so can help keep you and others even safer.
You really want perfect protection of the mucosal surfaces.
Theoretically, you should protect all the mucosa surfaces.

So, how does a face shield work, exactly?
Theyll hit the face mask and landand thats that.
The path for the aerosolized particles is a bit more complicated, though.

The question, as usual with this virus, is Is the juice worth the squeeze?
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