Filtering Facepiece (FFP) masks offer a real filter effect.
Synonym: Filtering Facepiece Respirators (FFRs)
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Designation
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Percent of Aerosols Filtered
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Total Inward Leakage
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FFP1
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>= 80%
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< 22%
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FFP2
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>= 94%
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< 8%
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FFP3
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>= 99%
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< 2%
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Designation
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Usage
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FFP1
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coarse dust; do not protect against a virus
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FFP2
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some protection against viruses
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FFP3
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contact with a highly infectious agent
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Designation
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Equivalent International Standards
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FFP1
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|
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FFP2
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N95, KN95, P2
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FFP3
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N99, EN149, P3
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where:
• KN95 masks are often made in China.
