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Re: Corona
by
yxt
on
28/04/2020, 19:59:44 UTC
Quote from: thandie on
Today
at 01:19:53 PM
"KN95 bzw. sowas wie FFP2?" bekommen für 9€.
sogar 1% besser ;-)
Chinese National Standard GB2626-2006
KN95: Filtration efficiency ≥95%
FFP2 sind 94%