N95 vs FFP2 vs FFP3: US and EU Respirator Ratings Compared
N95 is a NIOSH (US) filtering facepiece rating; FFP2 and FFP3 come from Europe's EN 149. The filtration numbers look close — 95%, 94%, 99% — but the test methods, leakage requirements, and legal acceptance differ. Here is the honest conversion logic, the markings that prove authenticity, and what each jurisdiction accepts.
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