How to serve #FFP2 masks: https://www.fh-muenster.de/gesundheit/forschung/forschungsprojekte/moeglichkeiten-und-grenzen-der-eigenverantwortlichen-wiederverwendung-von-ffp2-masken-im-privatgebrauch/index.php
A cookbook by @fh_muenster
Hat tip @codefuzius
@bekopharm @codefuzius serve FFP2 masks? is the work about, how to treat them properly, or?