有医用口罩的话,查一下BFE,PFE,更好的还有VFE
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2020-07-12 13:16:44
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Standard Specification for Performance of Materials Used in Medical Face Masks
| TEST |
LEVEL 1 BARRIER |
LEVEL 2 BARRIER |
LEVEL 3 BARRIER |
| ASTM F1862(Fluid Resistance) |
80 mmHg |
120 mmHg |
160 mmHg |
| MIL-M-36954 C: ΔP (Breathability) |
< 4 mm H2O |
< 5 mm H2O |
< 5 mm H2O |
| ASTM F2101: BFE (Filtration 3μm) |
≥ 95% |
≥ 98% |
≥ 98% |
| ASTM F2299: PFE (Filtration 1μm) |
≥ 95% @ 0.1 micron |
≥ 98% @ 0.1 micron |
≥ 98% @ 0.1 micron |
| 16 CFR Part 1610: Flame Spread (Flammability) |
Class 1 |
Class 1 |
Class 1
|
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有医用口罩的话,查一下BFE,PFE,更好的还有VFE
