| Certification/ Class (Standard) | N95 (NIOSH-42CFR84) | FFP2 (EN 149-2001) | KN95 (GB2626-20 06) |
P2 (AS/NZ 1716:2012) |
Korea 1st Class (KMOEL – 2017-64) |
DS (Japan JMHLW-Notification 214, 2018) |
| Filter performance – (must be ≥ X% efficient) | ≥ 95% | ≥ 94% | ≥ 95% | ≥ 94% | ≥ 94% | ≥ 95% |
| Test agent | NaCl | NaCl and paraffin oil | NaCl | NaCl | NaCl and paraffin oil | NaCl |
| Flow rate | 85 L/min | 95 L/min | 85 L/min | 95 L/min | 95 L/min | 85 L/min |
| Total inward leakage (TIL)* – tested on human subjects each performing exercises | N/A | ≤ 8% leakage (arithmetic mean) | ≤ 8% leakage (arithmetic mean) | ≤ 8% leakage (individual and arithmetic mean) | ≤ 8% leakage (arithmetic mean) | Inward Leakage measured and included in User Instructions |
| Inhalation resistance – max pressure drop | ≤ 343 Pa | ≤ 70 Pa (at 30 L/min)≤ 240 Pa (at 95 L/min)≤ 500 Pa (clogging) | ≤ 350 Pa | ≤ 70 Pa (at 30 L/min)≤ 240 Pa (at 95 L/min) | ≤ 70 Pa (at 30 L/min)≤ 240 Pa (at 95 L/min) | ≤ 70 Pa (w/valve)≤ 50 Pa (no valve) |
| Flow rate | 85 L/min | Varied – see above | 85 L/min | Varied – see above | Varied – see above | 40 L/min |
| Exhalation resistance – max pressure drop | ≤ 245 Pa | ≤ 300 Pa | ≤ 250 Pa | ≤ 120 Pa | ≤ 300 Pa | ≤ 70 Pa (w/valve)≤ 50 Pa (no valve) |
| Flow rate | 85 L/min | 160 L/min | 85 L/min | 85 L/min | 160 L/min | 40 L/min |
| Exhalation valve leakage requirement | Leak rate ≤ 30 mL/min | N/A | Depressurizatio n to 0 Pa ≥ 20 sec | Leak rate ≤ 30 mL/min | visual inspection after 300 L /min for 30 sec | Depressurizatio n to 0 Pa ≥ 15 sec |
| Force applied | -245 Pa | N/A | -1180 Pa | -250 Pa | N/A | -1,470 Pa |
| CO2 clearance requirement | N/A | ≤ 1% | ≤ 1% | ≤ 1% | ≤ 1% | ≤ 1% |
