@Magic14272090 @myrabatchelder @kprather88 Specifically about fit testing, there are several papers showing that people using the better N95s with reasonable fit achieve high levels of protection, many would pass a fit test if tested.
@Magic14272090@myrabatchelder@kprather88特别是关于合身测试，有几篇论文表明，使用合身性较好的N95的人可以获得高水平的保护，如果测试，许多人会通过合身测试。