>Slide 5 says it's fine. no, slide 5 says that they suffer at minimum a 3.4% loss in efficiency. a brand new N95 is still superior. So, afterwards, you have

>Slide 5 says it's fine. no, slide 5 says that they suffer at minimum a 3.4% loss in efficiency. a brand new N95 is still superior. So, afterwards, you have a sub-par N95 mask that now has increased risk of fungal spores and other hardy pathogens.