@Helipilot2006 @SaintAtx @thomasnumberone @IEMcElroy @Delta N95, assuming properly worn, is "okay" protection but it gets a lot better with other people masked too.
https://twitter.com/seungminki...
@Helipilot2006@SaintAtx@thomasnumberone@IEMcElroy@Delta N95，如果佩戴得当，是“好的”防护，但如果其他人也戴上面具，效果会更好。
https://twitter.com/seungminki...