Pesquisa revela que risco de pegar Covid com máscara PFF2 é mínimo
Dec 5, 2021 ·
1m 5s
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Description
As máscaras do tipo PFF2 (equivalentes N95, KN95 e máscaras P2) oferecem quase 100% de proteção contra a Covid-19, aponta um estudo do Instituto Max Planck, da Alemanha.
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| Author | RW Cast |
| Organization | RW Cast |
| Website | - |
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