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The page claims over 99% filtration by some dinky earloop surgical masks, which seems impossible unless they are only measuring the fabric and not the mask as a
by BugsJustFindMe 5y ago
The page claims over 99% filtration by some dinky earloop surgical masks, which seems impossible unless they are only measuring the fabric and not the mask as a whole. It definitely seems like the testing method can't possibly account for side leakage, which IMO makes the measurements basically useless.
- GavinMcG 5y agoUseless? It still tells me that the US-made masks I bought from a reputable manufacturer aren't up to spec. Eliminating the ones that fail regardless of fit is extremely helpful.
- lloydarmbrust 5y agoExactly. We can't tell you how it will fit on your face but can tell you if the fabric fails. You need both filtration AND fit to make a good mask.
- deleted 5y ago[deleted]