3 ms·
There's plenty of imported KN95 masks of various brands for sale but the real questions is which ones meet the KN95 standard and which don't?
by ThrowawayR2 6y ago
There's plenty of imported KN95 masks of various brands for sale but the real questions is which ones meet the KN95 standard and which don't?
- maxerickson 6y agoIt's a fair question. I think resistance to air flow is probably enough to evaluate whether a given package is better than cloth masks though (if the KN95 resists flow, probably better).