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The efficacy of face masks.
Photographs of smoke particles expelled by coughing showed that the filtration type of face mask effectively prevents them from spreading far from the wearer.
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| Main Authors: | , , |
|---|---|
| Format: | Artigo |
| Sprog: | Inglês |
| Udgivet: |
Royal College of Surgeons of England
1983
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| Fag: | |
| Online adgang: | https://ncbi.nlm.nih.gov/pmc/articles/PMC2494432/ https://ncbi.nlm.nih.gov/pubmed/6638854 |
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