Table 1.
American Society for Testing and Materials and European Norm standards for face masks and respirators.
| FFP Type | Standards | Filtration Efficiencies | ||
|---|---|---|---|---|
| Surgical Mask | USA: ASTM F2100-11 | Level 1 | Level 2 | Level 3 |
| standard | 95% | 98% | 98% | |
| EN: | Type I | Type II | Type IIR | |
| EN 14683 standard | 95% | 98% | 98% | |
| Respirator | USA: NOISH 42 CFR Part | N95/R95/P95 | N99/R99/P99 | N100/R100/P100 |
| 84 | 95% | 99% | 99.97% | |
| EN: | FFP1 | FFP2 | FFP3 | |
| EN 149:2001 | 80% | 94% | 99% | |
ASTM = American Society for Testing Materials. FFP = Filtering Facepieces. NIOSH = Respirators are tested and cleared via the National Institute for Occupational Safety and Health. CFR = Code of Federal Regulations.